Green Severum "Heros efasciatus"

Care Level




Reef Compatible


Plant Safe


Max Size

8" - 12"

Minimum Size

75 gallon


Black, Green, Orange, Red, Yellow



Water Conditions

Slightly acidic (6.2-7.5 pH), intermediate water hardness (3-12 dGH), 72 to 78 degrees Fahrenheit

General: The Green Severum (Heros efasciatus) is a colorful South American Cichlid that naturally occupies slow-moving waterways of the Amazonian Basin. Since becoming introduced to the hobby, there have been many variations of color produced through captive breeding. This species can live past ten years in aquaria and are known to be territorial. An air stone should be implemented in an aquarium with South American Cichlids, as they require an oxygen rich environment but prefer slow current. This species is relatively hardy, but cannot handle many stressors such as pH, temperature, and high levels of NO3 (nitrate) / NO2 (nitrite).

Fecundity (Reproduction): This egg laying species may require an aquarium of 100+ gallons to encourage mating behavior. The female may lay up to 2,000 eggs per clutch.

Aquarium Diet (Omnivore): Cichlid pellet, Insects, Brine Shrimp, Blackworms, Ghost Shrimp, Feeder Fish, Spirulina, Daphnia

Dimorphism: The best way to determine the gender of any Severum is to wait until they've matured (at an approximate length of 4''), and make observations during displays of breeding behavior. In some cases, the male will develope elongated dorsal, pelvic, and anal fins. The female will retain her short fins.

Compatibility: Oscars, Pacu, Arowana, Jack Dempsey, Synodontis, and other Severum species are typically compatible.