Crenicichla notophthalmus Breeding Guide
How to breed Crenicichla notophthalmus, a true dwarf pike from the Amazon; a cave spawner that is rarely traded and difficult to pair.
Overview
Crenicichla notophthalmus is one of the smallest pike cichlids, occurring in the Amazon region of Brazil around Manaus and Santarem. AquaInfo classifies it as a cave breeder. The species is rarely available in the trade, and AquaInfo notes that little is documented about its captive reproduction.
Sexing
AquaInfo reports a size difference between the sexes, with males reaching about 15 cm and females remaining smaller at roughly 11-12 cm.
Conditioning
As a carnivore, the species should be conditioned on live and frozen foods. AquaInfo recommends keeping it in a harem because females can be dangerously aggressive towards males, so a single male with several females spreads aggression and improves the chance of a stable pairing.
Breeding Setup
Provide caves and dense cover in very soft, acidic water. AquaInfo lists suitable parameters as 24-27 C, pH 4.5-6.0 and GH 0-4, reflecting the blackwater conditions of its native Amazon habitat. A sandy substrate suits this bottom-oriented species.
Spawning Behavior & Trigger
As a cave breeder, the female deposits adhesive eggs inside a cavity, in line with the genus pattern documented for related dwarf pikes. AquaInfo states that finding a compatible pair for breeding is extremely difficult and that detailed spawning observations are scarce, so soft, warm, acidic water is the main practical trigger.
Egg & Fry Care
Specific egg counts and fry-rearing timelines for this species are not documented in the consulted sources. As a member of a genus that exhibits biparental cave brooding, both parents would be expected to guard the cavity, but the practical scarcity of breeding reports means individual results vary.
Common Challenges
The greatest challenges are sourcing the fish, since it is seldom imported, and forming a compatible pair given the strong female aggression noted by AquaInfo. Maintaining the very soft, acidic water required for egg development adds further difficulty.