10 Best Fish For Small Tanks That Make Perfect Pets

Are you looking for that perfect fish to add to your small tank? Well, look no further! There are many types of fish that can happily swim in a tiny home.

Whether you prefer colourful and vibrant species or something more low-key, the possibilities are endless.

From tetras and guppies to corydoras and bettas — we’re here to help you decide which one is the best fit for your aquarium. Keep reading to learn more about the best fish for small tanks!

Let’s dive in! (pun intended!)

10 Best Fish For Small Tank

If you’re a fan of aquatic life, having a small tank of fish in your home can be incredibly exciting! You get to watch the fish swim around and create beautiful underwater scenes.

But not all fish are well-suited for smaller tanks – so what are some of the best options?

Here are 10 of the best fish for small tanks, ideal for those who want to enjoy some aquatic life without taking up too much space:

1. Betta Fish:

These flashy fish are a great choice for small tanks and make it easy to create striking displays with their vibrant colouring.

They’re also quite hardy and can survive in most water conditions, making them ideal for those who want to start off with a smaller tank.

2. Neon Tetra:

This species of fish is characterised by its vibrant neon blue stripes, making it perfect for adding some colour to your tank.

They’re also very peaceful which makes them an ideal addition if you’re looking to keep multiple species in the same tank.

3. Harlequin Rasbora:

With its black and orange scales, this fish is sure to add life to any aquarium! It’s a relatively small and peaceful species, making it suitable for most tanks.

4. Dwarf Pufferfish:

These fish may be small but they’re also quite feisty! They like to explore their surroundings and can make great tankmates in the right conditions.

5. Zebra Danio:

This bright patterned fish is both hardy and peaceful, making it ideal for those just starting out with aquariums. It has a tendency to swim in large schools which are sure to create beautiful scenes in the tank.

6. Dwarf Gourami:

This small but colourful fish comes in many varieties that boast magnificent colouration and is relatively easy to care for as long as their water quality is kept optimal.

7. Guppy:

These hardy and lively fish are a great choice for small tanks, as they’re both beautiful and peaceful, meaning they can easily coexist with other species in the same tank.

8. White Cloud Mountain Minnow:

This fish is ideal if you’re looking to fill your tank with smaller, colourful fish that aren’t too difficult to care for.

They can live in temperatures ranging from 18-22 degrees Celsius which makes them suitable even for those who don’t have a heater installed.

9. Platy:

These freshwater fish come in many varieties and colours, making it easy to create bright displays in your tank! They tend to be quite docile and peaceful, making them great tankmates.

10. Goldfish:

While goldfish do require more space to thrive than the other fish on this list, they’re still suitable for smaller tanks as long as you make sure to keep up with regular water changes.

They make a great first pet fish and that’s why they are a popular choice.

They come in many varieties and colours, so you can easily find one that suits your tank!


These are just 10 of the best fish for small tanks – there are plenty of other species out there that can suit a variety of different setups.

So if you’re looking to add some aquatic life and colour to your home, there are lots of fish options to choose from!

All you need is a tank, water conditioner, filter, and some hardy fish – and before you know it, your living room aquarium will be ready to go!

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