Archocentrus centrarchus

Archocentrus centrarchus — the Flier Cichlid — is a small, lively cichlid from Nicaragua and Costa Rica that bucks the trend of aggressive Central American cichlids. It inhabits slow-moving lowland rivers and lake margins, where it lives in vegetated areas over soft substrates. The pattern of dark lateral banding on a grey-olive body with subtle blue iridescence is pleasing and distinctive.

One of this species' most notable characteristics is its relative peacefulness compared to its Central American relatives. Outside of breeding season, pairs and individuals can coexist with robust community fish without significant conflict. This makes it a versatile species that bridges the gap between dedicated cichlid setups and community aquaria.

A. centrarchus is a cave brooder that spawns readily in captivity. Both parents share brood-guarding responsibilities, and the spectacle of a pair managing their fry school is both entertaining and instructive for the hobbyist.

Water: 22–28°C, pH 6.5–7.5, GH 5–15, KH 2–8; soft to medium-hard water preferred. Tank: 150 L minimum; caves, moderate planting; gentle to moderate flow. Feeding: Omnivore — small cichlid pellets, frozen bloodworm, brine shrimp, and vegetable flake. Breeding: Cave brooder; biparental fry guarding; clutch of 100–300 eggs; peaceful toward other fish even when breeding. Compatibility: Suitable for robust community tanks; one of the most community-friendly CA cichlids.