This peaceful fish is a schooling fish that should be housed in a planted aquarium with plenty of room to swim as they are very active. Madagascan Rainbows do best with a gravel substrate and its colors may intensify with a dark colored gravel. When maintaining a school of these fish, an aquarium that is at least 4ft in length should be used.
An egg layer, Bedotia gaeyi spawn over fine-leaved plants. During courtship, the male will show his brightest colors. At a temperature of 75°F, the fry will hatch after six or seven days.
Although Madagascan Rainbows have large mouths, their throats tend to be narrow. With this in mind, foods should not be too large. The Madagascan Rainbow is an omnivore and should eat a mixed diet of flake foods, live foods, and algae.