fish · Cichlidae
Severum
Heros efasciatus
Wild range: Amazon Basin (South America)

At a glance: Severum care
Compiled reference information. Review the care notes and original sources below.
What temperature is listed for Severum?
The compiled profile lists 22.2–28.0 °C for Severum (Heros efasciatus). Check the original sources below for context and differing recommendations.
What tank size is listed for Severum?
The profile lists a minimum tank volume of 55.0 US gallons (208.2 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.
What pH is listed for Severum?
The compiled profile lists a pH of 5.5–7.0. Review the cited care sources alongside the other water parameters in this profile.
Natural habitat
The Red Shoulder Severum is typically found in slow-moving rivers and flooded areas of the Amazon Basin, particularly in Peru and Brazil. Their natural habitat consists of warm, soft, slightly acidic waters with plenty of cover from submerged vegetation and roots, ideal for thriving and offering hiding spots.
Where they are found
Widespread throughout much of the Amazon River basin, this species thrives in various water conditions that include a mixture of soft and hard waters.
Aquarium care
To successfully maintain Red Shoulder Severums in an aquarium, it is essential to replicate their natural conditions with a minimum tank size of 250 liters. Regular water changes and maintaining stable water parameters are crucial. Their tank should include ample hiding spots created by driftwood and plants, with a soft substrate to prevent injury during their natural digging behavior.
Feeding
This species is an omnivore with a preference for vegetable-based food. It is best to provide a varied diet comprising high-quality flakes, sinking pellets, and frozen foods like bloodworms and brine shrimp. Fresh vegetables, such as peas and zucchini, can also be added occasionally to enhance their diet.
Compatibility
Gold Severum pairs well with medium to large community fish that share similar water requirements. Avoid keeping them with aggressive species or small fish that can become prey. Opt for tankmates that are not too aggressive to maintain a peaceful environment.
Breeding
Breeding the Red Shoulder Severum in captivity can be straightforward. Providing flat surfaces like rocks or broad leaves for egg laying, the mature pairs exhibit strong parental instincts by guarding the eggs and fry. It is advisable to use a separate breeding tank to protect the young from other fish.
Sources
Compiled from multiple independent care sheets — not copied from a single site.