The Green Severum requires a 30 gallon or larger tank that is at least 40 inches long and 20 inches tall. The larger the tank the better. They prefer a lightly-planted tank with a soft bottom and a few rooted plants. Adding a few large rocks would be appropriate as long as there is still plenty of open room for swimming and the water is not affected. Severum can be aggressive when spawning, and for this reason should only be housed with other semi-aggressive fish.
Differentiating between the male and female is very difficult. Positive identification can only be made after close examination of the genital papillae. The males normally have pointed fins and reddish-brown spots and "worm-like" markings on their heads. Females usually have a dark patch on the dorsal fin. The Green Severum does not pair as readily as other South American Cichlids, and may take a bit longer. Providing the male with a choice of females will help. An open breeder, the female can lay as many as 1,000 eggs on rocks. The water should be mildly acidic, soft with a pH of 6.0-6.5 and a hardness of dH 5. The temperature should range from 77-82°F. The Green Severum carefully tends to its fry.