The majority of rasboras are shoaling fish, and if they are kept singly in the aquarium, they become shy and nervous. There appears to be some recognition between members of a shoal, since new individuals added to an aquarium containing an established group are unlikely to be accepted readily by the rest of the shoal.
This group of fishes is one that is, by and large, overlooked by most aquarists, and yet there are a fair number of them in the trade. Inhabiting both still and running water, large shoals can be seen near the surface. They are found in southeast Asia and the IndoAustralian archipelago. In the main they are insectivores, but will take flake foods. Give them a varied diet, especially if you are going to attempt to breed them, and include small live foods or frozen Daphnia, and similar-sized items.
