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A lot of people love the idea of owning a saltwater aquarium… right until they start researching it online.

One forum says you need thousands of dollars worth of equipment. Another says one small mistake will wipe out the whole tank. After a while, it starts sounding more stressful than enjoyable.

But honestly, most healthy marine tanks are not being managed like laboratories every day.

They usually do well when people keep things stable, stay patient and avoid making constant changes. A lot of beginner problems happen because people rush the process – adding too many fish too early, changing equipment constantly, or trying to “fix” every tiny thing instead of letting the tank settle naturally.

Start simple

One mistake beginners make is trying to build a huge reef system straight away.

They buy powerful lights, expensive coral, dosing equipment, controllers… all before even understanding how the tank behaves.

A simple saltwater setup with a few hardy fish is honestly one of the best ways to start learning.

Once you get comfortable with:

• salinity,
• maintenance,
• filtration,
• and water quality,

everything else starts making more sense naturally.

Bigger tanks are actually easier

Sounds backwards, but it’s true.

Small marine tanks can change very quickly. Temperature shifts faster. Salinity changes faster. Water quality problems show up faster, too.

Larger systems are usually more stable, which gives beginners a little more room for mistakes.

That’s why many people in Melbourne starting their first reef tank end up happier with medium sized systems rather than tiny desktop aquariums.

Don’t chase perfection

One thing that catches people out in the beginning is overreacting to every small change in the tank.

A test result shifts slightly and suddenly people start adding three different products trying to “fix” it by the same evening.

Most marine tanks actually do better when they are left alone a bit more.

Tiny imperfections are usually less harmful than constantly changing the water chemistry every few days.

Good water matters

This is an important thing a lot of beginners ignore at first.

People spend hours choosing fish, lights, and rock setups… then use whatever water comes out of the tap without thinking twice about it.

Sometimes that works fine for a while.

Sometimes it turns into endless algae, cloudy water, or random issues that are hard to track down later. That’s why a lot of saltwater tanks use filtered water from the beginning — it simply removes a lot of the unknowns before they become problems.

Patience matters more than expensive equipment

Social media makes reef keeping look instant.

You see fully grown coral systems, crystal clear tanks, perfect colours… but most established aquariums took years to reach that point.

A healthy reef tank grows slowly.

The people who usually succeed are the ones who stay patient and avoid changing things everyday.

Maintenance is part of the hobby

There is no such thing as a “zero maintenance” saltwater aquarium.

But it also should not take over your entire life.

Most healthy systems just need consistent care:

• water changes,
• cleaning filters,
• checking equipment,
• and paying regular attention to the tank.

Little things done consistently usually work better than massive deep cleans once every few months.

A good saltwater aquarium doesn’t need to be the biggest or most expensive one in the room.

A lot of good marine tanks are actually pretty simple once they settle in properly. Healthy fish, stable water, decent maintenance, and a setup that feels nice to sit and watch after a long day – that’s usually what matters most to people long term.

Most experienced reef keepers end up caring more about consistency than chasing a “perfect” looking tank all the time. And if you ever need help setting one up or keeping an existing aquarium running smoothly, you can always have a look at Atlantis & Co Aquarium.

This is one of those aquarium topics where you’ll hear completely different opinions depending on who you ask.

Some people say UV sterilisers are essential. Others think they are a waste of money.

Honestly, the truth is somewhere in the middle.

They can work really well – but they are not a miracle fix for every aquarium problem.

A lot of people buy a UV unit thinking it’ll magically solve algae, cloudy water, or fish health issues overnight. Then they get disappointed when the tank still has problems a few weeks later.

That’s usually because UV is only one part of the system.

What a UV steriliser actually does

The easiest way to explain it is this:

Water passes through the UV unit, gets exposed to ultraviolet light, and that light helps kill or weaken tiny things floating around in the water.

Mostly:

• free-floating algae,
• some bacteria,
• and certain parasites.

That’s why people often notice clearer water after installing one.

If you have ever seen a tank suddenly go green for no obvious reason, UV can actually help quite a bit with that.

What it doesn’t do

This is the part many people don’t realise.

A UV steriliser won’t:

• scrub algae off your glass,
• clean a dirty tank,
• fix overfeeding,
• or replace water changes.

If the aquarium already has poor maintenance, a UV unit won’t hide that for long.

It is more like an extra support tool rather than the main solution.

We usually notice the biggest difference on larger systems

On smaller aquariums, some people barely notice a difference.

But on larger reef tanks or display aquariums, cleaner water becomes much more noticeable. Especially when the tank is in a living room, office, restaurant, or reception area where clarity really matters.

A lot of reef keepers also run UV simply because it helps keep the system feeling more stable overall.

One thing people forget – they still need maintenance

The UV bulb does not last forever.

Even when the light is still on, the strength drops over time. The inside sleeve can also get dirty, which reduces effectiveness.

So if someone installs a UV steriliser and never checks it again, it probably won’t do much after a while.

So… are they worth it?

In many cases, yes.

Not because they “fix” aquariums, but because they help support a healthier and clearer system when everything else is already being done properly.

That’s really the key.

Good filtration, sensible stocking, regular maintenance, and stable water parameters still matter way more than any single piece of equipment.

The UV just helps things along.

If you are trying to figure out whether a UV steriliser is right for your aquarium setup, or you need help with ongoing aquarium maintenance, you can always check out https://atlantisandco.com.au/ for more information.

Most people think a super clean aquarium is always a good thing. And honestly, that makes sense. If the water looks clear and everything looks spotless, it feels like the tank must be healthy too.

But that is not always the case.

One thing we often notice with aquarium owners is that sometimes people clean their tanks a little too much – especially when they are trying to do the right thing for their fish.

The problem is, an aquarium isn’t meant to be completely sterile. It is more like a small ecosystem. Once that balance gets disturbed too often, the tank can start acting up.

The “Good Bacteria” your aquarium actually needs

Inside every healthy aquarium, there are beneficial bacteria working quietly in the background. These bacteria help break down fish waste, leftover food, and other harmful substances in the water.

A common mistake people make is cleaning too aggressively at once, like:

• Changing almost all the water,
• Replacing every filter sponge,
• Scrubbing everything heavily,
• Or washing the filter under tap water.

It might seem helpful at the moment, but it can actually remove the beneficial bacteria that keep the aquarium stable.

And once that happens, you might notice:

• Cloudy water,
• Algae appearing out of nowhere,
• Stressed fish,
• Or water quality issues.

The tank may look cleaner, but the environment becomes less stable.

Your filter is not supposed to look spotless

This surprises a lot of people.

One of the most common mistakes we see in home aquariums is over-cleaning the filters.

A filter doesn’t need to look perfectly clean to work properly. In fact, some of the buildup inside the filter is actually part of the healthy biological system.

Instead of deep cleaning everything at once, gentle maintenance is usually the better approach.

Small maintenance is better than big “reset” cleans

Many aquarium owners wait until the tank starts looking messy, then do one huge clean all at once.

But aquariums generally respond much better to smaller, regular maintenance:

• Partial water changes,
• Light filter cleaning,
• Checking water quality,
• And keeping equipment running properly.

This keeps the ecosystem stable and helps avoid sudden stress on fish and plants.

A healthy aquarium doesn’t need to be sparkling clean

A little algae here and there is normal.
Some buildup in the filter is normal too.

The goal is not to make the aquarium look spotless – it is to create a balanced environment where everything can thrive in the long term.

Remember every aquarium is different

A small freshwater setup in an apartment won’t behave the same way as a large reef aquarium or custom built system.

That’s why there is no “perfect” cleaning schedule for every tank.

Sometimes the best thing you can do is leave the aquarium alone a little more and let it settle naturally.

You don’t need a spotless tank for it to be healthy. Actually, over cleaning or changing too much at once usually just messes up the balance and stresses everything out. A stable tank is always better than one that’s constantly being scrubbed.

If you are in Melbourne and need a hand with your filter or just want some advice on keeping things running smooth, check us out at https://atlantisandco.com.au/.

If you’ve ever owned an aquarium, you already know one thing – it looks peaceful, but it’s not exactly low effort. Clean water, healthy fish, balanced lighting… it all needs regular care. That’s where professional aquarium services come in.

If you are based in Melbourne and thinking about hiring someone to manage your aquarium, here is a simple breakdown of what you can expect.

1. Regular Cleaning – the Biggest Relief

This is the main reason most people hire aquarium services.

A professional team will:

• Clean the glass (inside and outside)
• Remove algae buildup
• Vacuum the gravel or substrate
• Change a portion of the water

Basically, they handle all the messy work you keep postponing.

2. Water Quality Check

Fish are sensitive. Even if the water looks clean, it doesn’t always mean it’s healthy.

Service providers usually test:

• pH levels
• Ammonia and nitrate levels
• Temperature balance

If something is off, they’ll fix it on the spot or guide you on what to do next.

3. Filter & Equipment Maintenance

Filters are like the heart of your aquarium. If they are not working properly, everything goes downhill quickly.

During service visits, they:

• Clean or replace filter media
• Check pumps and aerators
• Ensure lighting is working correctly

This keeps your aquarium running smoothly without any sudden issues and equipment failures.

4. Fish Health Monitoring

A good aquarium service doesn’t just look at the tank – they observe your fish too.

They’ll:

• Spot early signs of disease
• Suggest treatments if needed
• Guide you on feeding habits

Sometimes, they can prevent problems before you notice anything wrong.

5. Aquascaping & Design

If you want your aquarium to look like those beautiful Instagram setups, this is where professionals shine.

They can:

• Arrange plants, rocks, and decor much better
• Create natural looking underwater landscapes
• Suggest fish combinations that look good together

It’s not just about beauty – it also helps fish and other aquatic animals feel more comfortable.

6. Setup & Installation (For New Tanks)

If you’re starting from scratch, aquarium services can handle everything.

This includes:

• Choosing the right tank size
• Setting up filtration and lighting
• Adding fish gradually (very important)

This avoids beginner mistakes that often lead to fish loss.

7. Flexible Service Plans

In Melbourne, most providers offer flexible options like:

• Weekly maintenance
• Fortnightly visits
• Monthly check-ups

You can choose based on how big your aquarium is and how hands-on you want to be.

You’ve done the hard work- visited the local stores across Melbourne, picked out your tank and finally decided on your fish. But now you are facing the most confusing part of the setup: Lighting.

If you have started googling, you are probably more confused than when you started. Watts, Spectrum, Kelvins etc… such words are enough to confuse you. In a city like Melbourne, where we spend a lot of time indoors during those chilly winters, a well lit aquarium is a beautiful
centerpiece. This blog is a guide to help you choose the right light without the technical headache.

Why does lighting matter?

Before you buy, understand that lighting is not just for “looking good.” It serves two main purposes:

1. For your fish: It establishes a day/night cycle, which keeps them stress-free.
2. For your plants/corals: It acts as “food.” Without the right light, they can’t grow.

Factors you must consider:

1. What’s inside your tank?

The “best” light depends on your residents.

• Fish-only Tanks: Here you just need a light that shows off their colours. Basic LEDs are perfect.
• Planted Tanks: Think of light as “food” for your plants. They specifically crave red and blue tones to stay lush and green. Look for lights labelled “Full Spectrum”- it’s basically a balanced diet in light form.
• Marine/Reef Tanks: These need high intensity blue light to mimic the ocean depths.

2. Tank Depth & Dimensions

This is a big one. Light loses strength as it travels through water. If you bought a deep/tall tank, a cheap, weak light won’t reach the bottom. You need something with enough “punch” to reach the plants at the very bottom of your substrate.

3. Melbourne Summer & Heat

In Melbourne, we get those hot summer days.

• Avoid the Window: Never rely on natural sunlight. It is inconsistent and can cause an uncontrollable algae explosion and overheat your tank.
• Choose LEDs: Old-school glass tubes get very hot. Modern LEDs stay nice and cool. This is a lifesaver during a Melbourne heatwave, as it prevents your light from accidentally “cooking” the water and stressing out your fish.

4. Consistency

Just like us, fish and plants love a routine. Leaving the light on for 24 hours can lead to a massive algae breakout. So a schedule of 8-10 hours of light a day is quite good.

• Pro Tip: Get a simple plug-in timer so the light turns on and off at the same time every day automatically. Your fish will get their ‘sunset’ at the same time every night, even if you are not home.

5. Species Specifics

Some fish come from dark, murky rivers and actually hate bright lights. Others thrive in sunshine. Make sure the light intensity matches the fish’s natural habitat.

6. Balancing your Budget

Setting up a tank can be expensive once you have paid for the glass, the filter and the livestock. You don’t need the most expensive “smart” light to have a healthy tank.

• Budget-friendly: Look for fixed LED strips. They are energy efficient and do the job for most beginners.
• Investment: If you plan on growing difficult plants, spending a bit more on a “Full Spectrum” light now will save you money on replacing dead plants later.

Quick Reference Guide

Tank Type	Recommended Light Color	Duration
Fish Only	Standard White LED	8 Hours
Planted Tank	Full Spectrum (WRGB)	8-10 Hours
Marine/Reef	Actinic Blue / High Intensity	10-12 Hours

Don’t let the technical words and internet search scare you. If the light reaches the bottom of your tank, fits your budget and is kept on a steady timer, your aquarium will thrive. Start simple, observe how your fish react and enjoy the view!

You set up a beautiful tank, but within a few days you notice the water is cloudy and the fish look stressed. The secret to a thriving aquarium is not magic; it’s finding the perfect filter for your tank.

Filtration is an integral part for the health and wellness of your tank’s aquatic life. It ensures water remains clean, well oxygenated and free of harmful chemicals.

Understanding which filter is best for your tank depends on factors like water volume, required flow rate, and the level of filtration needed. Also, before picking a filter, you need to know how they work. Mostly, filters focus on the following methods:

1. Mechanical Filtration: Mechanical filters are like trash cans; they collect waste like leftover food and aquatic animal excreta. Just as a trash can needs to be emptied before it overflows, mechanical filters should be cleaned regularly.
2. Biological Filtration: Biological filter or biofilter in a fish tank is a filter containing porous media that allows water to pass through it. This filter media serves as a home for aerobic, nitrifying bacteria that break down fish waste to keep the environment safe and non-toxic.
3. Chemical Filtration: Using materials like activated carbon, this method removes dissolved waste, impurities and odours from the water.

In short – Mechanical filteration cleans the water, Biological makes it safe, and chemical filtration makes it crystal clear.

Here are the most common types of filters to help you choose the best fit for your aquatic world.

1. Sponge Filters

Sponge filters are cost effective and a good choice for specialized tanks. They provide great mechanical and biological filtration by drawing water through a porous sponge.

• Best for: Fry (baby fish) tanks, shrimp, hospital tanks and gentle flow lovers like Bettas.
• Cons: They lack chemical filtration and are not aesthetically pleasing. Please make sure its placement is well-planned so it does not impact the beauty of your tank.

2. Canister Filters (Best for Large Tanks)

Canister filters are external filters, usually placed inside cabinets so they don’t affect the look of the tank. They are ideal for large aquariums with big fish, high waste, heavily planted tanks and reef setups that need precise nutrient management. Due to their high efficiency, they effectively
trap waste and reduce the need for frequent water changes.

• Pros: Highly effective, quiet and reduces the need for frequent water changes.

• Cons: More expensive and require diligent maintenance as they rely on tubing and seals; leaks can occur if the unit is not maintained correctly.

3. Hang-on-Back (HOB) Filters

HOB are beginner friendly popular filters, good for small to medium-sized tanks. They hang on the tank’s edge, pull up water from the tank, clean it and return like a waterfall. They have all three features of mechanical, biological and chemical filtration.

HOB filters provide a balance between efficiency and affordability

• Pros: They offer a great balance of mechanical, biological and chemical filtration.
• Cons: They create some noise when water level drops. Also, they hang behind the tank, so if the tank is placed against the wall, it is difficult to install them.

4. Internal Filters

Internal filters as they sit inside the tank. They take up minimal space and are easy to install. These are ideal for small to medium-sized tanks.

They are affordable than external filters, almost noise proof as they remain submerged in water, which makes them ideal choices for bedrooms and offices.

• Pros: They are almost noise free, easy to install, no risk of external leaks, and are easy to maintain.
• Cons: They take up valuable space inside the tank.

There is no “one size fits all” filter. Consider your tank size, fish type, space and budget. Biggest piece of advice? When you’re serious about this hobby, avoid going to a generic chain pet store. Go to a specialty aquarium store instead. There are many top-end stores (especially here in Melbourne) that can give you expert advice – and we’ve also set up similar systems ourselves, so we understand what works and what doesn’t.

Aquarium keeping can become very expensive if you make mistakes, so finding a store that won’t sell you more than you need is key. Get expert advice on your setup, and your tank will thank you for it!

You can also explore our setup here: https://atlantisandco.com.au/

Thinking of setting up an aquarium? It’s not just about adding water and fish- it’s about creating a proper home for them.

Just like we plan things before moving into a house, fish also need the right setup to live comfortably. And as a beginner, we often get confused about what’s actually necessary and what’s not.

Some things are non-negotiable, while others you can add later. So, before bringing your fish home, it’s important to get the basics right.

So here we are giving a list of essential basic equipment.

Fish Tank

First off, you need a tank with appropriate size. If you are thinking about getting a bowl or a glass jar, honestly, that isn’t a good idea. It’s unhealthy for the fish because you won’t be able to regulate the temperature properly, a filter system won’t fit, and the fish won’t have enough space to move.

A bowl makes it impossible to:

• Maintain basic water parameters like pH and hardness.
• Keep the water oxygenated and clean.

You should definitely prefer a proper tank instead. You can start with a small to medium-sized one for now and shift to a larger one later if you want.

Filter

Just as we require a clean home to stay healthy, an aquarium needs a filter to maintain a safe environment for aquatic life. So it is inhumane to keep fish in captivity without a good filter system.

The Filter helps:

• To remove dirt and waste so the water remains fresh and clear.
• To keep fish stress free, leading to much better health.
• To make an aquarium stable and truly liveable.
• To create essential water circulation and house beneficial bacteria, preventing stagnant water.

You can explore beginner friendly internal or sponge filters easily at the local Melbourne aquarium stores or online retailers.

An aquarium filter is not just an accessory, it is a necessity for any tank. It ensures a clean, chemically balanced and oxygen-rich environment for the well-being of your pets.

Lighting

Lightning plays a crucial role in maintaining a healthy and vibrant ecosystem in your tank. It is more than just a decorative element.

• Good lighting is necessary for plant growth
• Natural cycles of light and darkness regulate the fish behaviour, such as feeding, reproduction and sleep patterns.
• A good lighting enhances the aesthetic appeal of your aquarium

For a thriving aquarium, select an LED with the correct PAR output (usable light) rather than just high wattage, ensuring it covers the full spectrum.

Adjustable Heater

Mostly the requirement of heater depends on the fish species, but in places like Melbourne, a A good heater is important due to temperature variations.

• It helps in preventing winter temperature drops, ensuring water remains above 20°C, and keeping tropical fish safe.
• It helps in stabilizing daily fluctuations. Melbourne weather often faces rapid temperature changes within a single day. So a heater prevents these fluctuations inside the tank.

So in Melbourne you can use a heater even in summer, as the thermostat will simply prevent it from turning on, but it will be ready to act on a cold and rainy day. Usually, it is safe to use 1 watt of power per litre of water, but in case your tank is in a cold room or against an outside wall, you
can consider a bit higher wattage.

Temperature Controller

Just relying on the aquarium heater and not investing in a good temperature controller is the major mistake that most aquarium owners make. They just check the heater with a thermostat and ignore the controller, thinking it’s an extra cost. But for the 24/7 safety of the tank, a temperature controller is a must.

• It prevents fetal disasters. If a heater’s internal thermostat fails in the “on” position, it can quickly raise the water temperature, killing fish. A controller shuts off power to the heater when the target temperature is exceeded.
• It ensures stable temperature, unlike standard heaters, which can have significant temperature swings.
• Helps in protecting the delicate aquatic life
• It reduces the load on the heater, stopping it from running constantly, thus preventing premature failure and extending its life.

In short, it’s not an extra- it’s protection for your entire tank’s ecosystem.

Thermometer

An aquarium thermometer is an essential tool to help you in monitoring water temperature accurately and ensure a stable environment for fish, shrimp and aquatic plants. In an aquarium, the thermometer is-

• Crucial for spotting faulty heaters before harming any of your fish.
• Essential to keep a close eye on temperature to keep your plant life thriving.

Whether you have a small aquarium or a large display tank, a reliable thermometer ensures the safety of your aquatic friends.

Looking after your aquarium at home can be a pleasing and calming experience. Regular feeding, basic cleaning, and the occasional water change are things most aquarium owners can handle on their own.

But there is a fine line between routine care and when your tank actually needs professional attention. And often, by the time it becomes obvious, it’s already a bit too late.

So how do you know when to step in and when to call in the experts?

Here are some clear signs you need to watch out for 👇

When Your Water Quality Starts Changing

Crystal clear water is always a good sign. But if you start noticing your tank looking cloudy, milky, or developing a yellow or brown tint, and it doesn’t improve after a regular water change – that’s a red flag.

This could be due to:

• Waste buildup
• Excessive algae
• Bacterial bloom
• Or even a foul smell developing

At this point, a simple DIY fix usually is not enough. A professional can assess the condition of your tank and carry out a deep clean, including substrate vacuuming and filter maintenance, to restore balance and clarity.

When Algae Gets Out of Control

A little algae? Totally normal.

But if you feel like you are constantly battling it and especially if it starts turning brown, red, or slimy – it’s time to take it seriously.

Persistent algae growth is often caused by:

• Nutrient imbalance
• Incorrect lighting
• Poor water circulation
• Declining water quality

Instead of just cleaning it again and again, an expert can actually identify the root cause and fix it properly, so it doesn’t keep coming back.

When Your Fish Start Acting Strange

Your fish are the best indicators of your tank’s health.

If you notice unusual behaviour like:

• Lethargy or lack of movement
• Hiding more than usual
• Ignoring food
• Gasping at the surface
• Erratic or unsteady swimming

it’s your tank telling you something is off.

This could be linked to:

• Low oxygen levels
• Sudden temperature changes
• High ammonia or nitrate levels

A professional will test the water, check the environment, and identify the exact issue before it escalates further.

When Equipment Isn’t Performing Like It Should

Your aquarium equipment – filters, heaters, air pumps, lighting – keeps everything running smoothly.

But unlike obvious breakdowns, most equipment issues happen gradually.

You might notice:

• Heater not maintaining accurate temperature
• Filter flow slowing down
• Frequent minor malfunctions
• Unpleasant odours from the tank

Even a small issue in one component can create a ripple effect across the entire system, leading to algae blooms or poor water conditions.

Regular servicing and inspection by a professional ensures everything is working efficiently before it becomes a bigger problem.

When Cleaning Has Been Skipped for Too Long

Life gets busy, we get it.

But if your tank hasn’t had proper cleaning in over 5 – 6 weeks, it’s likely more is happening beneath the surface than you can see.

Even if the water looks clean:

• Ammonia and nitrate levels may be rising
• PH balance could be off
• Waste may be accumulating in the substrate
• Algae could be starting to build up

In these cases, a deep professional clean can help reset your tank and bring everything back to a healthy state.

Don’t Wait Until It’s Too Late

A lot of aquarium issues build up slowly and by the time they are visible, your fish may already be under stress.

Regular attention and timely intervention are what keep your tank thriving, not just surviving.

Starting your first aquarium is super exciting, but it’s normal to feel a bit overwhelmed by all the colourful choices! If you’re setting up a tank in Melbourne, you need to keep our chilly winters in mind to keep your fish happy and healthy.

While many tropical fish love warmer water, you’ll want to ensure your tank stays between 22°C and 24°C to keep them comfortable during Melbourne’s colder months.

Here we have summed up a few key factors which we need to consider while choosing the fish:

• Size of the tank: How big is your aquarium? Some fish need more space to thrive.
• How big will the fish grow?
• Compatibility of different species.
• Temperature needs of species you are choosing as some fish prefer warmer or cooler water.
• Food habits: What type of food your selected species require?
• Lighting and plants: Different species have different needs for plants and light. So choose those which has similar requirements.

Small Tanks (5–10 Gallons)

If you’re starting with a desktop size tank, you need to pick the small fish, that don’t grow larger than 1.5- 2 inches. For small tanks, you need to avoid large schooling fish, they will feel packed up and stressed.

Best fish for small tanks:

• Betta Fish: Known for their beauty, Betta fish are found in a variety of colours. These are low-maintenance pets, hardy, easy to settle down in small size tanks. In short- most suitable for beginners. Betts are curious creatures and can recognize their owners as well! A heater and gentle water filter is essential to make them thrive.
• Guppies: These are budget friendly, low maintenance and peaceful pets. Like Betts, these also come in a variety of colours. The best part is that they easily cohabit with other calm fish species. You can keep a school of 5-6, preferably 1 male and 2–3 females in small tanks. They grow upto 1.5- 3 inches.
• Platies & Common Mollies: Both of these are easy to care for and super chill fish species. They nibble on algae and help keep the tank clean. Platies are the colourful, low-maintenance choice for smaller tanks, while mollies are a little bigger, more active, and can uniquely live in anything from fresh to saltwater.

Other additions:

• Cherry Shrimp: These bright red color animals are hardy and tolerant to little variable water pH and temperatures. These are peaceful algae eaters and produce minimal waste due to their small size.

Recommended plants:

• Ambulia Plant: Looking for an easy, beautiful plant to level up your tank? Ambulia is just what you need! It is fast growing – Great for soaking up excess nutrients and preventing algae Perfect for shrimp and fry – Its soft, feathery leaves make the perfect hiding spots Easy to care for – No CO2 required, just moderate lighting Adds a soft, natural look – The bright green tones bring life to any aquascape!
• Java Moss: It is one of the easiest plant for your aquarium. Pretend you don’t care about it and it grows a lot faster. Apart from being hardy, versatile and beautiful, it provides a soft nesting place for your shrimps also.

Medium Tanks (10–20 Gallons)

With slightly larger tanks, you can introduce more active or slightly bigger species.

Recommended fish:

• Tetras: Tetras are Jewels of the Aquarium! They are small, vibrant fish that love to swim in groups and thrive in well-planted tanks with clean, stable water. Tetras also thrive with other friendly fish.
• White Cloud Mountain Minnows: They are extremely forgiving with regard to aquarium temperature and water quality. They love to be in a school of 5-6 in a medium-sized aquarium and usually swim near the top or middle of the tank.
• Mollies & Platies: They are live bearers. So for these you need to have a good female-to-male ratio to lessen aggression and to prevent inbreeding. 1-3, if not more, is a safe bet usually. Mollies reproduce fast. If you plan on trying to keep the babies, have enough hiding spots. This way, they don’t get eaten up by the adults.

They prefer slightly warmer temperatures (24- 28°C) during Melbourne’s winter.

Additional community fish for medium tanks:

• Corydoras Catfish: Cories are great tankmates- they clean up all the food that settles to the tank bottom, are moderately active, quite cute and fun to watch.
• Cherry Barbs: They’re peaceful creatures, suitable for smaller tanks, very pretty, compatible with plants, and generally a very rewarding fish to keep!

Essential Tips

1. Start slowly and observe: Instead of overcrowding the tank at once, you need to introduce the fish gradually.
2. Check compatibility: Some species can be aggressive or require specific water conditions. So we need to find out our swimming pets with similar needs or those who complement.
3. Maintain temperature: Melbourne winters can be cold, so a reliable heater is essential.
4. Feed properly: Different species have different diets—some are omnivores, some herbivores.
5. Plants help: Live plants like Ambulia and Java Moss provide hiding spots and help maintain water quality.

Starting your aquarium journey with the right fish and plants makes the experience enjoyable and rewarding. With a little planning and care, your tank will become a beautiful, thriving underwater world in your Melbourne home!

As an aquarium professional, if I had to give one piece of advice to every aquarium hobbyist who walks into my shop, it’s this: Don’t try to make your aquarium “Perfectly Clean”.

An aquarium is a living ecosystem. If you over clean it, you kill the beneficial bacteria that keep your fish alive. If you under-clean it, waste accumulates. So you need to stay in between, neither overclean, nor let the tank become too dirty.

Here I am sharing a simple routine that helps you maintain a healthy and happy fish tank.

1. The Daily “Coffee Break” Check

You don’t need to spend hours on your tank every day. Just spend two minutes observing while you feed them.

• Does everyone look active? Is anyone hiding or feeling stressed?
• Have a look at your heater and filter, which is like the “pulse” of the tank, to make sure everything is running smoothly.
• If you notice a leaf starting to rot or a clump of food sitting at the bottom, just scoop it out.

2. The Weekly Refresh (15- 20 Minutes task)

Maintain a weekly cleaning schedule, instead of an aggressive monthly scrub.

• The 25% Rule: Only change about 15–25% of the water. This keeps the chemistry stable so your fish don’t get “shocks.”
• Gravel Vacuuming: This is the best investment you can make. Use a siphon vacuum to suck the waste out of the rocks. If you’re unsure which tools are right for your setup, or prefer professional servicing, our Melbourne-based maintenance plans ensure your system stays balanced.
• Prepare the Water: Before pouring new water, make sure it is safe. Normal tap water is harsh so use a conditioner. Also, try to get the temperature of fresh water, as close to the existing tank water as possible.

3. Monthly Deep-Dive

Once a month, you need to look ‘under the hood.’ Don’t just glance at the fish, examine the parts of the tank that are usually out of sight.

• The Filter Golden Rule: When your filter media gets gunky, never wash it under running tap water. Tap water contains chlorine that kills the “good” bacteria living in your filter. Always rinse your sponges in a bucket of old tank water.
• Trim the plants: If live plants are starting to take over, give them a little trim.
• Water Testing: Crystal clear water could also be unhealthy for your living creatures. So once a month, use a reliable testing kit to check your Ammonia and Nitrate levels. It’s the only way to know for sure if your water is actually safe for your “loving friends” inside.

The “Big No-No” List

To save your tank from crashing, avoid these silly mistakes:

• Soap and detergents: Even a little trace of detergent could be hazardous for your loving friends inside the tank.
• Don’t change and clean everything at once: If you swap the filter pads and vacuum all the gravel on the same day, you’re basically flushing the “good” bacteria down the drain. Space those chores out so your tank stays balanced.
• Don’t do complete water change: Unless there is a literal poison in the water, a total change usually causes more harm than good.

Your aquarium should be fun to take care of — not feel like a daily chore. For a quick daily check, just grab a coffee, pull up a chair, and simply watch your fish. Listen to the hum of your filter and heater — and that’s it for the day. Then just sit back and enjoy the live view.