Herichthys labridens Breeding Guide

Breeding the curve-bar cichlid Herichthys labridens, a hard-water biparental substrate spawner from the Panuco basin, listed as Endangered by the IUCN.

Overview

Herichthys labridens, the curve-bar cichlid, is a benthopelagic cichlid from the Atlantic slope of the Panuco River basin in Mexico, including the Media Luna karstic warm-spring system, where it lives sympatrically with related cichlids. FishBase records a maximum length of about 25 cm SL. It is an egg-laying substrate spawner and is listed as Endangered on the IUCN Red List, having been impacted by water diversion for agriculture; it is used both in commercial fisheries and in the aquarium trade.

Conditioning

FishBase gives a temperature range of about 22-30 C and pH 7.0-8.5, with aquarium recommendations near pH 7. Matching its hard, alkaline spring habitat supports condition. The species is considered not easy to raise in captivity and is recommended for intermediate keepers.

Breeding Setup

• Provide rock cover and flat surfaces for egg deposition; the species needs plant and rock cover.
• Use sand substrate so the pair can excavate nursery pits.
• Maintain hard, alkaline water as found in its natural spring habitat.
• Provide a large tank for this sizeable, territorial cichlid.

Spawning Behavior & Trigger

As a Herichthys substrate spawner, the pair cleans a chosen surface, the female deposits adhesive eggs, and the male fertilises them, after which both parents guard the clutch. Stable, warm, hard water encourages spawning.

Egg & Fry Care

Both parents tend the eggs and fry in typical biparental cichlid fashion, defending the brood and, after the fry are free-swimming, helping them feed by stirring the substrate. First foods for the fry include newly hatched Artemia.

Common Challenges

The species is territorial and not the easiest to raise, so provide ample space, hard alkaline water and structure. As an endangered species, use responsibly sourced captive stock for breeding.