Banded Rainbowfish
Melanotaeniidae sp.
Banded Rainbowfish (Melanotaeniidae sp.) — Intermediate care, Peaceful, under Rainbowfish. Minimum tank in the app: 50 US gal min; aim for 75–84°F and pH 6.5–8. The Banded Rainbowfish is ideal for aquarists looking to energize their mid to upper tank zones with active schooling behavior.

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.
Banded Rainbowfish Tank Setup
Aim for a spacious tank with a minimum of 190 liters to accommodate their active nature. Incorporate a mix of open swimming areas and vegetation or driftwood to create a balanced environment that encourages both exploration and retreat. Moderate to bright lighting can enhance their colors, while gentle water flow mimics their natural habitat, promoting healthy activity levels.
What Do Banded Rainbowfishs Eat?
Omnivorous by nature, they thrive on a varied diet, but be mindful of feeding speed—faster eaters can outcompete them if not managed. A well-rounded diet will not only support their health but also enhance their coloration.
Banded Rainbowfish Tank Mates
Banded Rainbowfish pair well with other mid to upper-level swimmers of similar size and temperament, such as small tetras or peaceful cichlids. Avoid housing them with overly aggressive species that could intimidate or outcompete them. Intraspecies, maintaining a minimum group size of six is crucial to prevent stress and territorial disputes.
Are Banded 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. A common oversight is underestimating their social needs; keeping them in smaller groups can lead to stress and stunted growth. neglecting tank size can result in overcrowding, affecting water quality and fish behavior.
Building a community? Run the full list through the stocking calculator before you add anything else.
Log tests and reminders in App-aquatic—free, same data you see here.



