Neon rainbowfish
Fish
The dwarf rainbowfish is a species of rainbowfish in the subfamily Melanotaeniinae. It is known under a number of common names including diamond rainbowfish, neon rainbowfish, Praecox rainbowfish, dwarf neon rainbowfish, peacock rainbowfish, and... Wikipedia
Scientific name: Melanotaenia praecox
Class: Actinopterygii
Domain: Eukaryota
Family: Melanotaeniidae
Order: Atheriniformes