The neon dwarf rainbowfish is a beautiful, almond-shaped fish with an iridescent blue sheen that flashes under the light. This hardy species is quite active and has a mild disposition that pairs well with many peaceful and semi-aggressive tank mates. Learn how to care for this beginner-friendly rainbowfish.
What are Neon Dwarf Rainbowfish?
Melanotaenia praecox is a 3-inch (8 cm) rainbowfish found in streams and tributaries of the New Guinea rainforest. The males have a shiny blue body with red-orange fins, whereas the females have a silvery body with yellow fins. As one of the smallest Melanotaenia species, they are relatively inexpensive for a rainbowfish