Vieja reganiThe Vieja regani, also known as Regan's Cichlid and Almoloya Cichlid, is a South American cichlid that arrives small when young but can grow large to over 30 centimeters in length with males larger than females, it is best for larger aquariums with compatible large tank mates. Research and preparation is required before purchasing to ensure its safety. Fish Size Guide: The 'Maximum Size' outlined below is the length this fish can reach as a full grown