The green terror is a colorful freshwater fish in the cichlid family. The fish originates from the Pacific side of South America from the Tumbes River in Peru to the Esmeraldas River in Ecuador. It is polymorphic and can have white or gold-orange edging to the tail and dorsal fins.

if you put them in a substandard habitat they can be aggressive and terrorize any other fish in the vicinity. This is especially true if the fish are smaller. You might witness even more aggressive behavior during times of breeding as well. You can keep the aggression to a minimum by providing plenty of good food.