Emerald Rainbow
Glossolepis wanamensis

Care Level




Reef Compatible


Plant Safe


Max Size

2" - 5"

Minimum Tank Size

55 gallon



Water Conditions

Slightly Basic (7.0 to 8.2 pH), High Water Hardness (10 to 20 dGH), 72 to 82 degrees Fahrenheit


General: The Emerald Rainbowfish (Glossolepis wanamensis) is an highly adaptable, schooling fish species from a single, eutrophic (nutrient rich, heavily planted) lake in New Guinea. The Emerald Rainbowfish will reach a length of four inches, and live well over five years in captivity. It is critical to maintain schools larger than six, with a 1:2 male to female ratio with the Emerald Rainbowfish.

Fecundity: The Emerald Rainbowfish (Glossolepis wanamensis) may produce several hundred eggs per clutch. The Rainbowfish reproductive behaviors are unique, as all eggs are not laid simultaneously. The female will deposit eggs in numerous passes. It is best to remove the parents, as it is frequently recognized that Rainbowfish will consume the eggs.

Preferred Water Chemistry: Neutral (6.5 to 8.0 pH), intermediate water hardness (6 to 18 dGH)

Aquarium Diet (Omnivore): Brine Shrimp, Blackworms, Omnivore Pellet, Spirulina

Dimorphism: The Emerald Rainbowfish (Glossolepis wanamensis) will display vivid coloration, once mature. The female will retain her more basic coloration. The male will also have a slightly more exaggerated, dorsal arch.

Compatibility: The Emerald Rainbowfish (Glossolepis wanamensis) are typically compatible with Barb, Danio, Hatchetfish, Corydoras, Botia, large Tetra, and other Rainbowfish.

Emerald Rainbow Videos

Author: Aquatics Unlimited