Theraps bocourti · Chisel-tooth cichlid

Overview

A large Central American cichlid, Theraps bocourti demands room and careful management of aggression. Breeding can turn tolerated companions into targets, and an established male may still attack his partner. A divider and alternative accommodation are essential practical preparations.

Distribution & habitat

Its type locality is Lake Izabal in eastern Guatemala, with further records from Atlantic drainages in Guatemala and Belize. Vegetated shores surround Izabal, whose relatively shallow basin receives sediment from the nearby mountains.

Aquarium setup

Arrange rocks into multiple shelters and add branches for shoreline structure. Keep water clear and well filtered. Space suitable for one adult or a pair is not automatically adequate for a mixed community, which needs substantially more room and clearly separated territories.

Diet & feeding

Naturally omnivorous, it consumes aquatic invertebrates, algae, and planktonic foods. Quality prepared foods are readily accepted, with live or frozen bloodworms and Artemia providing useful variety.

Behaviour & compatibility

Choose companions carefully: they must be too large to swallow and capable of escaping attacks. Other cichlids are an option only in a very large aquarium with substantial separate territories. Breeding pairs need their own accommodation.

Sexual dimorphism

Both sexes can share similar patterns. Mature males generally become larger and deeper-bodied, often with longer dorsal and anal fins and more dominant behavior.

Breeding

Raise at least six juveniles for natural pairing and allow eighteen months or more for maturity. Remove rejected fish promptly after a pair forms. Provide broad rocks or pots as spawning surfaces. Yellow coloration and dark bars intensify during courtship, which may involve forceful tail slaps and gaping. Keep a divider ready for aggression within the pair.

Both clean the site before rows of eggs are laid and fertilized, potentially numbering about five hundred. Parents dig shallow pits, then move hatchlings into one after roughly two to three days. Free swimming follows another three to four days later. Both parents defend the brood for weeks, sometimes exchanging roles. Start fry on Artemia nauplii and later introduce fine dry foods. Territorial adults may also attack hands during maintenance.