Description of Peacock RainBowfish The brilliant neon blue of these rainbowfish is displayed to best effect when they are kept in aquariums with floating plants to diffuse the light. Well-oxygenated water is also important, since Peacock Rainbowfish naturally inhabit fast-flowing waters. It has been suggested that only males display red edges to their fins, although this characteristic can in fact be seen in both sexes. Yellow fin-edges are more common in aquarium strains. One recently discovered wild population has red stripes on the body. Females spawn over several days, producing up to 50 eggs per day; the eggs stick to vegetation. Hatching takes about a week, and the fry can be reared on brine shrimp. Feeding the adults well makes them less likely to eat their eggs or offspring.
New Guinea occurring in small areas of the Mamberamo river system, near Iritoi, Dabra, and Siew.
3' in (6 cm) in aquariums.
Eats both prepared diets and small livefoods.
Peaceful by nature.
Temperature 75-81°F (24-27°C); soft (50-100 mg/l) and acidic (pH 6.5).