M. kamaka is a rare fish endemic to the Lake Kamakawaiar in the southeastern region of West Papua, Indonesia.

Aside from its highly restricted range, this species faces no threats in its remote home [2] It is a recent discovery, only being described in 1996, and is an aquarium fish noted for its unique blue colouration and manageable size.

[citation needed] Both genders of this species boast a distinct steel-blue appearance.

The lateral scales are adorned with a thick, very dark band of navy blue.

It is important to note that, much like other rainbowfish, the kamaka will exhibit active feeding behaviour and is prone to jumping out of the tank.