Boesemani Rainbow

Boesemani Rainbowfish (Melanotaenia boesemani)

The Boesemani Rainbowfish is one of the most iconic and brilliantly colored freshwater aquarium fish, celebrated for its striking half-blue, half-orange coloration, shimmering iridescence, and active schooling behavior. Native to the lakes of West Papua, Indonesia, this stunning rainbowfish is a favorite among aquarists for its bold appearance, peaceful temperament, and constant movement. A mature school of Boesemani Rainbowfish creates an unforgettable display in large planted and community aquariums.

Boesemani Rainbowfish are energetic, social fish that thrive when kept in groups. They spend much of their time swimming throughout the middle levels of the aquarium, with males displaying their most vibrant colors while engaging in harmless sparring and courtship displays. Their peaceful nature makes them excellent companions for a wide variety of similarly sized community fish, and their active behavior brings constant life and motion to the aquarium.

These hardy rainbowfish thrive in spacious aquariums with open swimming areas, dense plantings along the edges, and gentle to moderate water movement. Stable water quality and regular maintenance are essential to maintaining their health and brilliant coloration. A varied diet of high-quality flakes, pellets, frozen foods such as brine shrimp and bloodworms, and occasional live foods will help maximize their vibrant colors and overall condition.

Quick Facts:

• Care Level: Easy
• Temperament: Peaceful
• Adult Size: 4–4.5 inches (10–11.5 cm)
• Minimum Tank Size: 55 gallons
• Temperature: 75–82°F (24–28°C)
• pH: 6.5–8.0
• Diet: Omnivore
• Schooling: Yes, best kept in groups of 6 or more

With their breathtaking blend of metallic blue and brilliant orange, peaceful disposition, and energetic schooling behavior, Boesemani Rainbowfish are an exceptional choice for aquarists seeking a colorful centerpiece species that brings movement, brilliance, and natural elegance to the freshwater aquarium.