The Neon Rainbowfish (Melanotaenia praecox) is a dwarf species of rainbowfish. It is endemic to the Mamberamo River basin in West Papua in Indonesia. These animals have long, blue, oval bodies, with bright red fins.
These small, energetic fish get to be up to 2.5 inches in length, making them one of the smaller rainbowfish varieties. They prefer water with a neutral pH (6.8-7.5), and a water temperature of 73-80 degrees Fahrenheit. A small school of Neon Rainbowfish can be comfortably kept in a 20-gallon aquarium. Rainbowfish can be skittish and may hide if their school is not large enough, so we recommend a minimum school of 6 for best results.
These fish will do best in planted tanks, and show the most colour in tanks with a dark substrate and dimmed lighting.
Neon Rainbowfish are peaceful and can be kept with most other community fish species.