All Severum Cichlid's fall under the Genus 'Heros', these fish are Native to South America. The Natural Habitat of these fish includes rivers, lakes, flooded areas with trees & vegetation under water. These fish are also known to eat fruits which fall in the waters they inhabit. There are many types of Severum Cichlids which occur naturally, few of them are Heros efasciatus, Heros severus, Heros liberifer. However in the Aquarium Hobby there are more colorful ones, these are all captive bred & due to selective breeding there are lot of variants available like the Red Severum, Green Severum,Yellow Severum, Golden Severum. Few common names used in the Hobby are Hero Cichlid,Convict fish, Sedate Cichlid & so on. Severum can grow up to 8 inches in length. They can be kept as a pair or in a South American Cichlid aquarium with other Cichlids who share similar temperament & water parameters. I always give Severum Cichlid the size advantage over other Cichlids in a community aquarium, as these fish are semi aggressive by nature & easily take defeat if some other fish challenges & wants to takeover their territory, hence understanding their behavior & providing them with their requirements like the right tank size, tank mates, tank decoration & water parameters will only help these fish to thrive in your aquarium.