Neon Dwarf Rainbowfish (Melanotaenia praecox)
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. 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 blood red-orange fins, whereas the females have a silvery body with bright yellow fins. Whils