Boesemani Rainbow (Melanotaenia boesemani) 4cm
They are currently endangered in the wild, so the rainbowfish sold in the aquarium hobby are all captive-bred. However, the rainbowfish you see at the pet store are usually 2-inch (5 cm) juveniles that looked washed out and barely resemble their adult counterparts. It can take up to a year of providing good care and high-quality foods for them to color up, but the results are well worth the wait.
What is the lifespan of rainbowfish? Depending on the water temperature you keep them at, they can live for about 5–8 years on average, although some hobbyists have reportedly kept them alive for up to 13–15 years.
Limited Quantity Available – Will Sell out Fast!
What to Expect from Us
All aquatic plans are provided with proper care instructions and are suitable for beginner to intermediate aquarium keepers.
| Specification | Detail |
|---|---|
| Species | Boesemani Rainbow (Melanotaenia boesemani) |
| Size | 4cm |
| Age | Juvenile |
| Lifespan | 5–8 years (up to 13–15 years with proper care) |
| Color Development | Requires up to 1 year of proper care to develop full color |
FAQ
How long does it take for a Boesemani rainbowfish to develop its full color?
It can take up to one year of consistent care and high-quality food for a Boesemani rainbowfish to develop its full color.
What is the typical lifespan of a rainbowfish?
On average, rainbowfish live 5–8 years, though some have been kept for up to 13–15 years with proper care.
Are the rainbowfish sold captive-bred?
Yes, all rainbowfish sold in the aquarium hobby are captive-bred due to their endangered status in the wild.
Austin Young –
Received my Boesemani rainbowfish in good condition. It’s a little small now, but I’ve been feeding it a balanced diet and maintaining stable water parameters. After six months, it’s already showing signs of color development. Very patient but rewarding.
Emma Skinner –
The fish arrived healthy and active. I’ve kept it in a 10-gallon tank with gentle filtration. It’s still a bit pale, but I expect it to brighten up in the coming months. The care instructions were clear and helpful.
Joe Springer –
I’ve had rainbowfish before, but this one is more vibrant than expected. The size is accurate, and the packaging was secure. I’m excited to see how it develops over the next year.