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Pasion Cichlid (Thorichthys pasionis) Care Guide

Thorichthys pasionis is a small firemouth relative from the Usumacinta drainage of Mexico and Guatemala, with a metallic iridescent body.

Overview

Thorichthys pasionis is a small Central American cichlid related to the firemouth, with a metallic, iridescent body. FishBase records a maximum standard length of about 17 cm. It is less commonly traded than some other Thorichthys.

Taxonomy

  • Family: Cichlidae
  • Genus: Thorichthys
  • Scientific name: Thorichthys pasionis

Habitat

The species occurs on the Atlantic slope of Central America in the Usumacinta River drainage of Mexico and Guatemala. FishBase describes it as a benthopelagic freshwater fish of rivers and lakes with softer bottoms, at temperatures of 26-30 °C, pH 8.0-9.0 and hardness 5 dH or higher.

Tank requirements

  • Minimum tank volume: 200 L
  • Temperature: 24-28 °C (75-82 °F)
  • pH: 7.0-8.0
  • GH: 8-18 °dGH
  • Lifespan: 6-10 years

Diet

It is an omnivorous, benthic feeder (FishBase trophic level about 3.3, estimated from close relatives). In the aquarium it accepts a varied diet of live, frozen and prepared foods.

Compatibility

It is a semi-aggressive cichlid that can be kept with robust community species in a planted tank. Very small tetras and overly aggressive cichlids are best avoided.

Conservation status

IUCN Red List: Least Concern (assessed 2018).

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