About the Green Severum
name: green severum (heros severus)
max size: up to 8–10 inches
water parameters: pH 5.0-7.0, temperature 77-84°F, soft to moderately hard water; softer, slightly acidic water is preferred
diet: omnivorous – thrives on high quality cichlid pellets, spirulina-based foods, and vegetables such as zucchini, spinach, and peas; supplement with live or frozen foods such as brine shrimp, bloodworms, and krill for balanced nutrition
temperament: generally peaceful for a large cichlid, although individuals can become territorial, particularly during breeding; typically less aggressive than many other South American cichlids
tank setup: spacious aquarium of at least 75 gallons for a single adult, with larger tanks recommended for pairs or community setups; provide driftwood, smooth rocks, sturdy plants, and open swimming areas; excellent filtration and regular water changes are essential
compatibility: suitable with other peaceful to moderately assertive medium and large fish such as geophagus, silver dollars, larger rainbowfish, peaceful catfish, and similarly sized South American cichlids; avoid very small fish that may be eaten and aggressive species that could bully them
behavior: intelligent and curious fish that frequently interact with their owners and learn feeding routines; spends much of its time exploring the middle and lower levels of the aquarium; breeding pairs become protective of their territory, eggs, and fry
fun fact: true heros severus is distinguished from many other severum species by its mouthbrooding behavior. Unlike most severums that lay eggs on flat surfaces and guard them there, heros severus parents can carry developing eggs and young in their mouths for protection, making them especially fascinating among South American cichlids.
