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Neon Tetras – The Schooling Fish

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Neon Tetra Closeup

Neon Tetras are probably one of the most well-known freshwater fish in the hobby. Their vibrant colors pop and stand out from the green background of a planted aquarium. They’re straightforward to acquire and on the cheaper end regarding cost. They’re gorgeous little fish that love to be in schools. This article will provide general information for Neon Tetras.

Requirements

Neon tetras are small and stay that way. They max out at a size of around 1.25″. They are perfectly comfortable in an aquarium of 10 or more gallons. Having a large school for them is a requirement. They do not do well alone. A minimum of six neon tetras are recommended but even more, are preferred! They are not picky eaters, but small food must be considered that will fit into their mouths. They will happily eat micro pellets, flake food, or bloodworms. They can live in waters with a temperature between 68° and 78° Fahrenheit but do best at temperatures between 76° and 78° Fahrenheit. These fish are very peaceful and will not bother other fish in an aquarium. Having a well-established aquarium will help these little aquatic animals thrive!

Due to their smaller size and docile personality, these fish should be kept with other peaceful fish. It is not recommended at all to keep them with larger Cichlids, predatory fish, or aggressive fish. If they are, they will become a quick meal for the larger fish or be beaten up and pushed around by the aggressive fish. Other peaceful and smaller fish are the best neighbors for Neon Tetras.

More Information

After working at a pet store for many years I noticed that many people would like Neon Tetras to be the first fish in their aquarium. From experience, this is usually a death sentence for this fish. Neon tetras are not hardy at all. They’re not expensive so it’s an attractive choice for a first fish. Many hobbyists use the first fish in the aquarium to jump-start their nitrogen cycle.

To quickly sum it up, a new aquarium cycles through three stages. An ammonia stage, a nitrite stage, and ends at the nitrate stage. Fish produce ammonia through their waste and it gets converted to nitrates by bacteria. At low levels, nitrates are less toxic to fish than ammonia and nitrites. The nitrogen cycle transitions through each stage which is very hard on neon tetras. Once, the aquarium runs through this cycle it is safer to introduce the neon tetras. There is plenty of fish that do much better through the cycle such as a smaller species of danio, red phantom tetra, Serpae Tetra, and many others. It is preferred to use a hardy fish for the nitrogen cycle.

Final Thoughts

Having a school of Neon Tetras weaving in-between plants, driftwood, and other decorations is a wonderful sight. They’re peaceful and easy to care for once in an established aquarium. Mixing them with other peaceful animals is wonderful and they will do well with shrimp and snails. If you’re looking for other blue colored fish for your fish tank, check out 11 Blue Freshwater Fish for Your Aquarium.

Photo by H. Krisp on wikimedia commons

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