Theraps wesseli Breeding Guide

Breeding notes for Theraps wesseli (Chortiheros wesseli), a vulnerable rheophilic cichlid endemic to fast-flowing rivers of northern Honduras.

Overview

Theraps wesseli was described by R. R. Miller in 1996 and is now placed in the monotypic genus Chortiheros as Chortiheros wesseli. It is endemic to the northern Caribbean coast of Honduras, recorded from the Río Papaloteca, Río Cangrejal and Río Danto, where it lives in fast-flowing waters. FishBase lists a maximum size of about 8.0 cm SL, and the IUCN assessed the species as Vulnerable in 2020. Because it is a rheophilic stream fish, captive breeding depends on reproducing the clean, oxygen-rich, flowing conditions of its native rivers.

Breeding Setup

The species originates from fast-flowing river reaches, so a breeding tank should provide strong, well-oxygenated current, stable warmth and very clean water. A substrate of sand with rocky rubble and larger stones reflects the natural habitat and supplies the flat surfaces and crevices that Central American substrate-spawning cichlids use as spawning sites. The Aquairi record classifies this species as a substrate spawner of intermediate breeding difficulty.

Common Challenges

Detailed published breeding accounts for this species from peer-reviewed or specialist editorial sources are scarce, reflecting how uncommon it is in the trade and its restricted, vulnerable range. The main husbandry challenges are maintaining the strong flow and high water quality the species requires and providing enough space and structure for a compatible pair to establish a territory. Specific spawn sizes, egg development times and fry-rearing details are not documented in the sources consulted and are therefore omitted.