Mouth Almighty

Glossamia aprion
Mouth Almighty - Marinewise © 2024 MarineWise

Quick Facts

Scientific name Glossamia aprion
Other names Blanchard's Perchlet, Gill's Cardinalfish, Glossamia, Gobbleguts, Northern Mouthbreeder, QLD Mouthbreeder, QLD Mouthbrooder, Soldier Fish, Stinker
Size 18 cm (7 in)
Weight Up to .2 kg (.44 lb)


Habitat & AU Distribution Freshwater habitats in streams, pools, swamps & reservoirs rich in dense vegetation
Depth Range 0 - 5 m (16 ft)
Mouth Almighty Distribution

Interesting Info

  • The mouth almighty is native to Australia, where it is found in the streams and rivers of northern Australia, primarily in Queensland.
  • Male fish have a more vivid and colourful appearance than females, especially during the breeding season when they display bright blue-green iridescent scales on their sides and a reddish-orange tail. The females have a more subdued appearance, with silver and pale yellowish-brown scales.
  • They are a schooling fish and are most commonly found in groups of six or more.
  • Mouth Almighty are omnivores and feed on a variety of small aquatic organisms, including insects, crustaceans, and algae.
  • The fish prefer to live in clear water with moderate to high levels of dissolved oxygen.
  • Breeding typically occurs during the warmer months of the year when water temperatures rise. The eggs are adhesive and will stick to plants or other objects in the water. After spawning, both the male and female may continue to guard and tend to the eggs. The eggs hatch after 5-7 days, and the fry will become free-swimming a few days later.
  • The species has a lifespan of approximately 4 – 5 years.
Species Interaction


Mouth Almighty, is a popular aquarium fish in Australia due to its vibrant colours and peaceful nature. They are generally considered to be a good community fish that can be kept with other peaceful fish species of similar size.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Melanotaeniidae

Genus: Glossamia

Species: Glossamia aprion

Conservation Status

The species has been listed as “Least Concern” by the International Union for Conservation of Nature (IUCN) due to its widespread distribution and relatively stable population.

Mouth Almighty
As Aquarium Fish

Care Level: Easy to moderate

Temperament: Peaceful

Diet: Omnivore

Reef Compatible: No

Minimum Tank Size: 30 gallons