Cuatro Cienegas Cichlid Care Guide
Herichthys minckleyi is an Endangered cichlid endemic to the Cuatro Cienegas basin in Mexico, notable for distinct tooth morphs adapted to plants or snails.
Overview
Herichthys minckleyi is a polymorphic cichlid endemic to the Cuatro Cienegas basin in Coahuila, Mexico. It was described as Cichlasoma minckleyi by Kornfield and Taylor in 1983 and later placed in Herichthys. FishBase gives a standard length up to 17.5 cm. The species shows distinct pharyngeal-jaw morphs: papilliform teeth for shredding plants and molariform teeth for crushing snails, with a rare intermediate form.
Taxonomy
- Family: Cichlidae
- Genus: Herichthys
- Scientific name: Herichthys minckleyi
- Authority: Kornfield & Taylor, 1983
Habitat
The species is endemic to the Cuatro Cienegas basin, a groundwater-fed system of springs, streams, ponds and lagunas at about 750 m elevation in a low-rainfall desert valley. It is a freshwater, benthopelagic, non-migratory fish.
Tank requirements
- Minimum tank volume: 350 L
- Temperature: 22-28 °C (72-82 °F)
- pH: 7.5-8.5
- GH: 12-22 °dGH (hard, alkaline water)
- Lifespan: 8-12 years
Diet
Herichthys minckleyi is an omnivore. The two main morphs feed differently: molariform individuals consume gastropods (snails), while papilliform individuals graze on plants, and FishBase also reports adults taking snails and small fishes. The morphs forage in different microhabitats, which reduces competition within the species.
Compatibility
Like other Herichthys it is territorial and best housed with robust Central American cichlids or large plecos rather than small fishes. It is unsuitable for planted layouts because it disturbs the substrate.
Breeding
It is an egg layer; the female guards the brood. FishBase notes the species is not easy to raise in tanks.
Conservation status
IUCN Red List: Endangered (assessed 2018). The basin is a protected area, and its single-system endemism makes the species vulnerable to habitat change.