A large shoal of iridescent neon rainbowfish gracing a planted community aquarium creates a wonderful, eye-catching display.. Males are more colourful with redder finnage, also becoming deeper bodied with age. Females with orange-yellow finnage trimmed with silver.. Known names:. Rhombatractus praecox. Origin:. Middle reaches of the mamberamo river in northern irian jaya.. Diet:. Flake, micropellets, small frozen foods such as mosquito larvae, daphnia, brineshrimp etc.. Tank mates:. Best maintained in groups of at least 6 specimens, they will add activity and colour to the top and middle levels of the tank. Do not keep with large boisterous species.. Behavioural traits:. Perfectly peaceful with other species and will not eat plants an ideal community aquarium candidate.. Water parameters:. Temperature: 22 -28 c. Ph: 6-8. Dh: up to 15 degrees