Red Rainbowfish

Red Rainbowfish Glossolepis incisus

Type of Animal:

Lakes, streams, heavily planted tropical waters, waters surrounding lakes, vegetated pools, creek mouths, rivers

Lake Sentani & tributaries in Papua

Males bright red w/ back becoming higher w/ age, females olive brown to olive yellow, nonbreeding males dull dusty brown to dull reddish-brown to silver, color can change depending on mood, rather slender fish, males have longer fins, large eyes, large mouth, narrow throat

Insects, bloodworms, tubifex worms, brine shrimp, water fleas, aquatic plant matter

Status in Wild:

Breeding in aquariums, zoos, aquaculture, & fish farms

Schools of 6-30 w/ more females than males

Additional Info:

Young: Fry
Group: School

7-10 days 

Life Span:
5-6 years

Body Length:
Male: 5.9 in
Female: 3.94-4.72 in

Tail Length:
1 in

Threatened due to water pollution, overcollection, restricted range, habitat degradation, overfishing, competition w/ introduced fish, predation by introduced fish, & fish farming.
Also called Salmon-Red Rainbowfish, New Guinea Rainbowfish, Salmon Rainbowfish, Irian Red Rainbowfish, New Guinea Red Rainbowfish, Irian Jaya Rainbowfish, & Lake Sentani Rainbowfish.
Females scatter eggs among clumps of vegetation.
Males display vibrant colors & flare fins in front of females. Male competition often results in better breeding.
These fish are very sensitive to water changes.
These fish have lots of energy & are very active swimmers. They can also be very skittish.
Females can release up to 50 eggs per day during spawning period.

Fun Fact(s):
While threatened in wild, very common in aquarium trade.
When kept in lower temp waters than normal, all males will turn red while in ideal conditions (70-75) many subordinate males don’t become red.
Started to become popular in aquarium trade in 1970s & now widely captive bred.
When spooked, they will jump.

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