Many cichlid enthusiasts consider the Threadfin Acara (Threadfin Geophagus) as the crown jewel of the Cichlidae family. Though territorial like other cichlids, the Threadfin Geophagus is relatively peaceful in larger aquariums with plenty of hiding locations. As this beautiful fish matures it develops elongated spines on the dorsal fin that have a thread-like appearance. Combined with its beautiful silver body with shades of green and blue, the Threadfin Geophagus is an elegant addition to community cichlid aquariums.