Lake Kutubu Rainbowfish

The most rainbow-colored of them all is the Lake Kutubu Rainbowfish (Melanotaenia lacustris), or Turquoise Rainbowfish. The males possess iridescent turquoise-blue bodies, whereas females are not so vividly colored and slightly less in body. Males are active, hardy, and prefer to be in a group and hence will be a great centerpiece for a community aquarium.

Origin of the Lake Kutubu Rainbowfish

From their name itself, the Lake Kutubu Rainbowfish live naturally in Papua New Guinea's Lake Kutubu. They live naturally in well-oxygenated, clear water with vegetation around, feeding on insects, alga, and minor crustaceans. Their natural habitat makes the requirement for clean and well-oxygenated water a requirement for aquarium care.

Temperament of the Lake Kutubu Rainbowfish

Lake Kutubu Rainbowfish are active but not brutal, displaying best colours in the smallest schooling group of 6 or more. Males will chase during courtship but never brutally. Their schooling active nature makes them perfect for big planted tanks.

Lake Kutubu Rainbowfish Compatibility with Other Fish Species

They are perfectly suited to community tanks with:

1. Tetras, rasboras, and danios
2. Other rainbowfish species
3. Corydoras and peaceful bottom feeders

Avoid:

1. Large aggressive cichlids
2. Fin-nippers such as tiger barbs
3. Predatory fish that will scare them off

Price Range for the Lake Kutubu Rainbowfish

Lake Kutubu Rainbowfish are mid-range. They usually cost ₹600–₹1,800 ($7–$22) depending on size, color intensity, and sex. Colored males are more expensive.