Species · Heros efasciatus / H. severus (trade 'severum')

Severum: tank size, water and tank mates

Large, mostly peaceful South American cichlid; may eat small fish and plants.

Adult size20 cm (7.9 in)
Minimum tank65 US gal
Temperature24–29 °C (75–84 °F)
pH6–6.5
Temperamentsemi-aggressive
Keep in groups ofAlone or pairs
Swimsmid
Shrimp & snailsLikely to eat them

Predator: may eat fish up to about 4 cm.

Check a tank with Severum

Good tank mates for Severum

These species share its temperature range and temperament, with no fin-nipping or predation risk under our rules. Still check your tank size and bioload in the checker.

African butterflyfish · Agassiz's dwarf cichlid · Angelfish · Banjo catfish · Betta (male) · Black skirt tetra · Blue acara · Bristlenose pleco · Buenos Aires tetra · Cockatoo dwarf cichlid · Discus · Dwarf gourami · Firemouth cichlid · Flying fox · Gardneri killifish · Jewel cichlid · Kribensis · Moonlight gourami · Pearl gourami · Pictus catfish · Rainbow shark · Red-tail shark · Striped raphael catfish · Three-spot gourami

Avoid with Severum

African dwarf frog (predation) · Amano shrimp (predation) · Assassin snail (predation) · Black neon tetra (predation) · Black phantom tetra (predation) · Bumblebee goby (predation) · Cardinal tetra (predation) · Celestial pearl danio (predation) · Cherry shrimp (predation) · Chili rasbora (predation) · Clown killifish (predation) · Common / comet goldfish (temperature) · CPO dwarf crayfish (predation) · Crystal red shrimp (predation) · Dojo loach (temperature) · Dwarf pencilfish (predation) · Ember tetra (predation) · Emerald dwarf rasbora (predation)

Sources

Checked 2026-11-09 · confidence: medium. These are cautious community guidelines, not guarantees. Not veterinary advice. Report an error.