Encyclopaedia
Severum Cichlid
Heros efasciatus
The 'Poor man's Discus': a tall, laterally compressed body like a disc, with patterns of red, orange, and green dots and bands. Reaches 20 cm but has a surprisingly mild temperament for a cichlid of this size. Varieties: green (wild), red, gold, super red. One of the few large cichlids compatible with plants — doesn't dig or destroy the setup. Long-lived: up to 10 years.
- Family
- Cichlidae
- Origin
- Bacino amazzonico
- Origin
- Amazon, Orinoco, and Guianas
- Tank use
- Used in 0 tanks
Share
22 °C - 29 °C
6 - 7
Freshwater
Bottom and middle
25 cm
Description
Geographic Origin and Biotope: Amazon and Ucayali river basin, South America. Settles in flooded forests and river meanders where the current slows down and large deposits of fallen trunks are created (Black/Clear water).
Taxonomy and Morphology: Severum Cichlid (Heros efasciatus). Often called "The Poor Man's Discus" for the discoidal shape of its very tall and compressed body, but it has dozens of times superior robustness and a protruding snout to "tear".
Social Behavior: The gentle giant! Unlike Central American cichlids, the Efasciatus is an extremely mild, phlegmatic and non-predatory fish, which swims gracefully. The only timid skirmishes occur if two pairs spawn close to each other.
Coloration and Sexual Dimorphism: Natural morphology: dark greenish/olive, crossed by weak vertical black bands. On the market, chromatically modified variants explode (Gold Severum, Red Spotted Severum, which is pink/yellow with dots). Males have elaborate dotting (worming) on the face.
Care and observations
Aquarium Setup: Large tank, minimum 150 cm (60 inches) for adults. Huge crossed roots and very little light. NO PLANTS. Not even armored Anubias will resist more than two nights to the very powerful herbivorous bites (they tear the leaves to pieces and digest them).
Diet and Feeding: Herbivore/Omnivore (strongly leaning towards vegetables). Vegetable flakes and spirulina are its life; it will devour peas, zucchini, boiled lettuce and occasionally krill/earthworms but meat must not abound or they swell (Bloat).
Water Quality: Excellent tolerance and great adaptability to dechlorinated tap water. They love tannins, so peat releases or Catappa leaves keep them healthy and shiny. Downward pH swings induce them to mate.
Compatibility and Tankmates: Among the best community Cichlids in the world. They can be kept together with Silver Dollars, Uaru, Geophagus, Discus or schools of large Tetras (e.g. Congo, Bleeding Heart). They will also leave small Corydoras alone.
Aquarium Reproduction: Flat substrate breeder, they often clean woods and lay pinkish eggs (up to 1000). They are very sweet parents who never stop cleaning and assisting the fry for weeks even when they swim scattered.
Risks and Diseases: Hole in the Head disease (HITH). A Heros fed solely on proteins, beef or kept in water loaded with nitrates will see its skull literally crumble and will die of infections.
Fish profile
- Temperament
- Generalmente pacifico per un ciclide grande. Territoriale in riproduzione ma meno aggressivo di altri ciclidi americani
- Diet
- Onnivoro erbivoro: pellet per ciclidi, spirulina, verdure, artemia, chironomus
- Tank level
- Bottom and middle
- Minimum group
- 2
- Adult size
- 25 cm
- Minimum tank
- 200 L
- GH
- 1 dGH - 10 dGH
- KH
- n/a
- TDS
- n/a
- Conductivity
- n/a
- Sex ratio
- Coppia o piccolo gruppo in vasche grandi
- Feeding frequency
- 2 volte al giorno, forte componente vegetale
- Bioload
- Medium-high
- Flow
- Corrente moderata
- Reproduction
- Depositore su substrato. Coppie monogame. Entrambi i genitori curano la prole. Nidiate di 200–800 uova.
- Compatibility
- Con pesci robusti e pacifici di taglia simile: scalari, pesci gatto, barbus grandi. Evitare pesci piccoli.
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.

