Best Fish Combos In A 10-Gallon Tank

If you’re looking for a small aquarium that’s easy to maintain and fits on a desk or shelf, a 10-gallon tank is an excellent option. But what are the best fish combos in a 10-gallon tank?

In this article, we’ll explore the different types of fish that thrive in a 10-gallon aquarium and suggest some compatible fish combos that will create a beautiful and healthy environment.

Why A 10-Gallon Tank?

A 10-gallon tank is a perfect size for those who are new to fishkeeping or have limited space in their homes. It’s also a great choice for small fish that don’t require a lot of swimming space, as long as the tank is properly filtered and maintained.

Fish To Avoid

Before we dive into the best fish combos, let’s discuss some fish to avoid in a 10-gallon tank.

Large or violent fish that need a lot of swimming space, like goldfish or cichlids, are not suitable for a 10-gallon tank. Also, avoid keeping more than one male betta fish together as they can be territorial and may fight.

Best Fish Combos In A 10-Gallon Tank

Option 1: Community Tank

A community tank is a great choice for those who want to mix different types of fish. Here are some compatible fish combos that work well in a 10-gallon tank:

6 Neon Tetras and 3 Corydoras Catfish
5 Guppies and 2 Mystery Snails
5 Cherry Barbs and 5 Rasboras

Option 2: Species-Only Tank

If you prefer to keep only one species of fish in your tank, here are some options that work well in a 10-gallon tank:
5-6 male or female Endler’s Livebearers
5-6 male or female guppies
6 Pygmy Corydoras Catfish

Factors To Consider For Fish Combos In A 10-Gallon Tank

When choosing fish for your 10-gallon tank, consider the following factors:


Make sure the fish you select are small enough that they feel comfortable in a 10-gallon tank.


Choose fish that have similar temperaments and won’t fight or bully each other.

Water Requirements

Different fish species have different water requirements, such as pH and temperature. Make sure the fish you choose have similar needs.


A 10-gallon tank needs proper filtration to keep the water clean and healthy for your fish. Choose a filter that can handle the tank size and the bio load of your fish.

Tank SetupOnce you’ve chosen your fish, it’s time to set up your tank. Here are some tips to get you started:


Before adding fish to your tank, make sure it’s properly cycled. This means establishing beneficial bacteria that will convert harmful waste into less harmful substances.


Add decorations such as plants, rocks, and caves to provide hiding places for your fish and make the tank look more natural.


Fish need a consistent light cycle to maintain their circadian rhythms. Consider adding a timer to your aquarium light to ensure it turns on and off at the same time each day.


A 10-gallon tank can be a beautiful addition to any home or office, but it’s important to choose the right fish combinations to ensure the health and happiness of your aquatic pets. Consider the size, behavior, water requirements, and filtration needs of each fish before making your decision.

Your 10-gallon tank can create a peaceful and beautiful atmosphere for many years to come with the proper setup and maintenance.


Can I keep a betta fish combo in a 10-gallon tank?

Yes, a betta fish can live in a 10-gallon tank, but it’s important to avoid keeping more than one male betta together.

Can I mix freshwater and saltwater fish in a 10-gallon tank?

No, it’s not recommended to mix freshwater and saltwater fish in the same tank, as they have different water requirements.

Can I add more fish to my tank over time?

Yes, but make sure to research the compatibility and consider the bioload of the fish you want to add to the tank. It’s important not to overstock the tankage with different water requirements.

What types are suitable for the fish combo in a 10-gallon tank?

There are many types of fish combos that can thrive in a 10-gallon tank, including tetras, guppies, shrimp, and bettas.

How many fish can I keep in a 10-gallon tank?

It depends on the size and species of the fish you want to keep. As a general rule, it’s recommended to have one inch of fish per gallon of water, but make sure not to overstock the tank and consider the bioload of the fish.

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