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Heckel Severum Care Guide

The Heckel Severum is a wild severum form of the genus Heros from blackwater tributaries, a deep-bodied omnivore for soft, acidic aquaria.

Overview

The Heckel Severum is a wild severum form of the genus Heros, a deep-bodied, laterally compressed cichlid of northern South America. Severum-group fish are part of the tribe Heroini and were formerly placed in Cichlasoma. Wild blackwater forms are considered more demanding to keep than commercial colour strains.

Taxonomy

  • Family: Cichlidae
  • Genus: Heros
  • Scientific name: Heros sp. "Heckel"
  • Note: an undescribed or wild severum form within the genus Heros

Habitat

The genus Heros occurs in the Amazon, Orinoco and Essequibo basins. Blackwater severum forms originate from soft, acidic, tannin-stained tributaries with submerged wood and leaf litter, conditions that should be reproduced in the aquarium.

Tank requirements

  • Minimum tank volume: 300 L
  • Temperature: 26-30 °C (79-86 °F)
  • pH: 4.5-6.5
  • GH: 1-4 °dGH
  • Lifespan: 8-12 years

Diet

Severum-group cichlids are omnivorous, with wild relatives feeding largely on plant material and fruit. A varied aquarium diet of prepared cichlid foods supplemented with vegetable matter and occasional live or frozen foods is appropriate.

Compatibility

Severums are comparatively peaceful mid-water cichlids that may become territorial when breeding. Wild Heckel forms suit soft-water communities with species such as discus and other South American fish, and are not reliably plant-safe.

Breeding

The closely related Heros severus is a mouthbrooding cichlid in which the larvae are taken into the mouth and tended by the parents; this reproductive mode is shared within the severum group.

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