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Copella nattereri (Spotted Tetra)

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A small, schooling fish well suited to a quiet community tank with other peaceful species such as neons and hatchetfish. Both sexes have the same basic colouration, with a thick horizontal stripe running along the flanks, but the male is more intensly coloured.

An interesting fish due to their behaviour of sometimes jumping in search of food and when spawning. With this in mind a tight fitting lid for your tank is necessary. These fish are peaceful and ideally should be kept as a group.

Fish information (behaviour and breeding):

Very peaceful, but should be kept in an aquarium with a tight lid due to their tendency to jump.

Breeding these fish is achievable but given their need to place the eggs above the water line they will either place the eggs on the tank cover or alternatively if you provide some planted matter above the water line they may spawn on this.

Sexing these fish is not very difficult. The male is larger and generally a lot more colourful. They prefer slightly acidic water which will be necessary if you want to achieve breeding success. The spawning behaviour is very interesting. Both fish will jump together to the spawning medium and will place a few eggs each time. The male will attempt to splash water on the eggs to keep them wet until they hatch. The eggs should hatch in around three days and will be free swimming two days later when they can be fed on infusoria and other small fry foods.

Family Group: Characins
Distribution South America
Temperature 24-28C
Size 5 cm
Water Parameters Prefers slightly acidic and soft water, but should adapt to most water conditions.
Water PH 6.0-7.0

Useful sources of information:

For a well illustrated and detailed reference guide on this and many other fish, consider the Baensch Aquarium Atlases. Volume 1 contains all the common species, and later volumes cover more unusual species. You can buy these books here.