Males are generally larger than females and they develop a bump on their head as they mature and age. These bumps are referred to as nuchal humps and are quiet impressive when developed and adds to their appeal. In terms of tank size a 55 gallon tank or larger would be suitable for these guys. Make sure to provide gravel and hiding places using clay flower pots,
PVC tubing or slate. Remember mechanical filtration and water changes are key. These South American cichlids can tolerate a decent range in pH, most water from the tap should be fine without having to alter the pH.
Like all substratum spawning cichlid Green terror females lay their eggs on flat or hard surfaces and the males fertilize them. They make great parents or residents in a community cichlid tank with cichlids of equal temperament. With any cichlids they need a territory to establish and adequate hiding places. there is another cichlid which carries the name terror in its common name which is the
Red terror cichlid but it’s not related to the
Green terror cichlid.