Boesemani Rainbow Fish (Melanotaenia boesemani)
Bring a burst of vibrant color and lively movement to your aquarium with the Boesemani Rainbowfish (Melanotaenia boesemani). This iconic fish is prized by aquarists around the world for its spectacular blend of electric blue and deep orange hues, peaceful temperament, and active schooling behavior. Ideal for both planted and community tanks, the Boesemani Rainbowfish will instantly become a showpiece in your aquatic setup.
Boesemani rainbow fish are native to the lakes and rivers of West Papua, Indonesia, where their shimmering scales light up crystal-clear waters. Their bodies are instantly recognizable: males display a striking two-tone coloration with bright blue fronts and fiery orange tails, while females are more subdued with a soft, silvery appearance.
| Specification | Detail |
|---|---|
| Species | Melanotaenia boesemani |
| Size (adult) | 2.5 to 3.5 inches |
| Temperament | Peaceful, schooling |
| Water Temperature | 72°F to 78°F |
| Water pH | 6.0 to 7.5 |
| Hardness | 2 to 10 dGH |
| Compatibility | Community tanks with non-aggressive fish |
FAQ
What is the typical size of a Boesemani Rainbowfish when fully grown?
A Boesemani Rainbowfish typically grows to 2.5 to 3.5 inches in length when fully mature.
Are Boesemani Rainbowfish suitable for beginner aquarists?
Yes, they are peaceful and thrive in community tanks, making them a good choice for beginners with a stable, well-maintained aquarium.
Do male and female Boesemani Rainbowfish look different?
Yes, males have a striking two-tone coloration with bright blue fronts and deep orange tails, while females are more subdued with a soft, silvery appearance.


Michael MacDonald –
The Boesemani Rainbowfish added a lot of visual appeal to my 10-gallon tank. They swim in groups and their colors are stunning under the right lighting. Easy to care for and very peaceful. I’ve had them for three months and they’re still active and healthy.
Christian Coleman –
I bought this fish for my planted tank, and it fits perfectly. The colors are vibrant and they don’t stress other fish. I noticed they prefer slightly warmer water, so I adjusted the heater. Great addition to any community setup.
Richard Walker –
The fish arrived quickly and looked healthy. They’ve been in my tank for two months and are very active. The blue and orange colors shine especially in the morning light. I love how they school together and create a lively atmosphere.