Boeseman's Rainbowfish

Melanotaeniidae sp.

Boeseman's Rainbowfish (Melanotaeniidae sp.) — Intermediate care, Peaceful, under Rainbowfish. Minimum tank in the app: 30 US gal min; aim for 81–86°F and pH 6.5–8. Boeseman's Rainbowfish is perfect for aquarists seeking a vibrant, active species that thrives in groups.

Boeseman's Rainbowfish (Melanotaeniidae sp.) in a planted freshwater aquarium
Care levelIntermediate
TemperamentPeaceful
Min tank size30 US gal min
pH range6.5–8
Temperature81–86°F
Max size4.3 in (11.0 cm)
Captive lifespan6–10 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Australia / New Guinea

  • Australia & Oceania

Regional colours match the stocking calculator’s origin map.

Boeseman's Rainbowfish Tank Setup

Create an environment that balances open swimming space with areas of cover, such as plants and driftwood, to mimic their natural habitat. A gentle water flow enhances their activity levels, while a sandy substrate allows for comfortable foraging. Bright lighting can elevate their colors, but ensure shaded spots are available to reduce stress.

What Do Boeseman's Rainbowfishs Eat?

As omnivores, they are generally quick feeders, thriving on a varied diet of pellets, flakes, and live food. However, ensure that food is distributed evenly to minimize competition, as dominant individuals may hog resources.

Boeseman's Rainbowfish Tank Mates

Ideal companions include similarly sized, peaceful species that occupy different swimming zones, such as small tetras or rasboras. Avoid aggressive or overly large fish that might intimidate or outcompete them. Intraspecies, maintaining a group of at least six is crucial to prevent stress and ensure natural social dynamics.

Are Boeseman's Rainbowfishs Good for Beginners?

We rate this as intermediate. Budget time for testing, maintenance, and watching behaviour if the water looks fine but the fish do not. Aquarists often underestimate the importance of group size, leading to solitary or poorly socialized fish. neglecting the need for a well-structured environment can result in stress and reduced activity levels.

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