Crenicichla compressiceps Breeding Guide

How to breed Crenicichla compressiceps, a dwarf pike from the Rio Tocantins that spawns in wood crevices and benefits from target fish to cement the pair bond.

Overview

Crenicichla compressiceps is a compact dwarf pike cichlid from the lower Rio Tocantins basin in Para, Brazil. Seriously Fish describes it as a cave brooder, and AquaInfo confirms it as a cave spawner that uses driftwood as a nesting site. Both sources note it is challenging to breed and that relatively little is documented about its reproduction.

Sexing

According to Seriously Fish, males have striped yellow fins and females may develop a reddened belly when ripening. AquaInfo notes a size difference, with males reaching about 7-8 cm and females about 5-6 cm.

Conditioning

Seriously Fish recommends conditioning pairs on high-quality live or frozen foods. Because males are very territorial, especially during spawning, AquaInfo suggests keeping one male with two or three females so aggression is spread out.

Breeding Setup

Provide caves and complex driftwood structure, as Seriously Fish notes the fish hide their eggs in twists of wood or under rocks. Reported breeding parameters from Seriously Fish are 24-27 C, pH 5.0-6.8 and hardness of 2-8 dH; AquaInfo gives a broader range of 24-30 C, pH 5.5-7.5 and GH 0-4. Including target fish is widely recommended to diffuse aggression and strengthen the pair bond.

Spawning Behavior & Trigger

Seriously Fish describes courtship as a head-down shaking dance. The species often spawns poorly without target fish present, which reduce intraspecific aggression and help cement the pair bond. A clutch is small, with Seriously Fish reporting only around 25 to 50 eggs, suspended by adhesive filaments from the spawning surface.

Egg & Fry Care

According to Seriously Fish the eggs hatch in two to three days, with fry becoming free-swimming within about four further days. The parents guard the brood carefully, and parental care is reported to be noticeably stronger when other fish are present in the tank.

Common Challenges

Forming a compatible, stable pair is the principal difficulty, and male territoriality can endanger females. Small clutch sizes and the need for stable soft water mean yields are modest, so target fish and ample cover are key to consistent success.