Phenacogrammus interruptus common name congo tetra.
They can grow up to 7-8 cm / 3 inches. They are best kept in water parameters of Ph range of 6.0-7.5, and temperatures of 24-27 Celsius / 75-81 °F.
The congo tetra is considered by many to be a jewel of the tetras, because of its natural beauty. With flowing fins and a mixture of colours, orange, white and yellow. They are a lovely and peaceful addition to any aquarium. They prefer to swim in groups of 5-8. As they do get a little bigger its not wise to mix them with any small size fish.
The congo tetra is a very greedy fish. They will eat any food you put in the tank. Flake, pellets, and granular food. With also a treat of freeze dried, frozen or live foods every once in a while.
As they are such a greedy fish spread the food around your tank, so hopefully your other fish will get some food.