Boeseman's rainbowfish
Boeseman's rainbowfish is a colorful member of the family Melanotaeniidae, native to the Ajamaru Lakes region of the Vogelkop Peninsula in West Papua, Indonesia. Mature males show a striking two-tone body, bluish-gray at the front grading into orange-red at the rear, while females are more silvery. It is an active, peaceful shoaling fish that should be kept in groups; males display their best colors when competing for the attention of females. Its constant swimming makes it a lively midwater and upper-tank occupant. It thrives in a spacious, well-planted aquarium with open swimming areas, neutral to slightly alkaline water, and good current. It accepts a wide range of foods and colors up best on a varied diet. Egg-scattering breeding occurs among fine-leaved plants or spawning mops, with eggs hatching over one to two weeks.
Water parameters
| Temperature | 25 – 30 °C |
|---|---|
| pH | 7 – 8 |
| Carbonate hardness (KH) | 5 – 15 °dKH |
| General hardness (GH) | 8 – 20 °dGH |
Tank & stocking
| Minimum tank volume | 200 L |
|---|---|
| Volume budget per individual | 20 L — adds up with tank-mates |
| Minimum group size | 6 individuals (shoaling) |
“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.
Frequently asked questions
What size aquarium does Boeseman's rainbowfish need?
Provide at least 200 litres for a small group to keep Boeseman's rainbowfish in good conditions.
What water parameters does Boeseman's rainbowfish need?
A temperature of 25–30 °C, pH 7–8.
Is Boeseman's rainbowfish peaceful or aggressive?
Its temperament is peaceful.
What does Boeseman's rainbowfish eat?
Its diet: omnivore.
How many Boeseman's rainbowfish should be kept together?
It is a social species: keep a group of at least 6.
How big does Boeseman's rainbowfish get?
Around 10 cm as an adult.
Is Boeseman's rainbowfish suitable for beginners?
Care level: beginner.
Planning a tank with Boeseman's rainbowfish?
AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.
Fish from the same biotope
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