Lake Kutubu Rainbow Fish

Picture of a Lake Kutubu Rainbow Fish

Description of the Lake Kutubu Rainbow Fish

The Lake Kutubu Rainbow Fish is only found in Lake Kutubu in Papua New Guinea and are also known as Blue and Turquoise Rainbow fish due the different shades of blue they display from light blue to aquamarine and Turquoise. Their color is dependant on the water conditions as well as their diet.

Popular Name: Lake Kutubu Rainbow Fish
Species: Melanotaenia lacustris

Picture of a Lake Kutubu Rainbow Fish

Lake Kutubu Rainbow Fish

Facts - Information - Picture

Profile of the Lake Kutubu Rainbow Fish
This Profile contains interesting facts and information about the Lake Kutubu Rainbow Fish species.

  • Size: 10 - 12cm

  • Fish Tank conditions: Temp: 22 Degrees, PH: 7-8

  • Diet / Feeding: Mosquito Larvae, Mysis Shrimp, Bloodworm and Daphnia

  • Temperament: Peaceful fish , recommended to keep in groups of at least 6

  • Habitat: Lake Kutubu, Central Papua New Guinea

  • Behaviour: Lively, needs plenty of space. Ensure tank is well planted.

  • Range: Papua New Guinea

Scientific Classification of the Lake Kutubu Rainbow Fish
Definition: Scientific classification, or biological classification, is how biologists group and categorize species of organisms with shared physical characteristics. Scientific classification belongs to the science of taxonomy.

  • Species: Melanotaenia lacustris

  • Popular Name: Lake Kutubu Rainbowfish, Blue Rainbowfish, Turquoise Rainbowfish

  • Kingdom: Animalia

  • Phylum: Chordata

  • Family: Melanotaeniidae

Interesting Facts and Information - How do you identify the sex of a Lake Kutubu Rainbow Fish?
The males and females of many fish species have different colors or different shaped bodies. But there are also other fish species where there is no visible difference. Its sometimes tricky being an ichthyologist!


Interesting Facts and Information - Why are Lake Kutubu Rainbow Fish slimy?
Lake Kutubu Rainbow Fish secrete a type of mucus, or slime, from their skin. This slime provides protection against parasites and infections and helps the Lake Kutubu Rainbow Fish to move through the water faster. Some fish species also release toxins in their slime which ward off enemy attacks. Other fish species use their slime to feed their young.

Interesting Facts and Information -
Why do Lake Kutubu Rainbow Fish have gills?
Gills enable the Lake Kutubu Rainbow Fish to breathe. Gills consist of thin sheets of tissue containing blood vessels. As water passes over the gills oxygen is absorbed into the blood stream Carbon dioxide passes out into the water. The gills are protected by a large bony plate called an operculum. Some fish species however have lungs and breathe air.

Interesting Facts and Information -
Why do the Lake Kutubu Rainbow Fish have fins?
A fin is an external appendage or "limb" of a fish. Fins are used for directing, stabilizing, or propelling the different fish species in water. Numbers of fins vary between fish species, but there are usually seven. Each of the fins on a fish are designed to perform a specific function:

  • Dorsal fins - The dorsal fin is located on the backs of fishes. The Lake Kutubu Rainbow Fish has Dorsal fins to lend stability in swimming.

  • Ventral fins. The ventral fin is located on the pelvic area of fishes. The Lake Kutubu Rainbow Fish has Ventral fins to lend stability in swimming.

  • Caudal fins. The Caudal fin is located on the tail area of fishes. The Lake Kutubu Rainbow Fish has Caudal fins to propel through the water.

  • Pectoral fins. The Pectoral fin is located on the breast area of fishes. The Lake Kutubu Rainbow Fish has Pectoral fins to for locomotion and side to side movement

Interesting Facts and Information about Lake Kutubu Rainbow Fish

Lake Kutubu Rainbow Fish

  • Interesting Information about Lake Kutubu Rainbow Fish

  • Facts about Fish Species - Why are Lake Kutubu Rainbow Fish slimy?

  • Why do the Lake Kutubu Rainbow Fish have gills?

  • Facts about Fish Species - Why do the Lake Kutubu Rainbow Fish have fins?

  • Species: Melanotaenia lacustris

Fish Species

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