close up of the face of a blue discus fish, popular tropical aquarium pet in aquaculture, tropical fish specie from the amazon

aequifasciatus amazon america american animal animals aquaculture aquarium basin beautiful blue cichlid cichlidae cichlids close closeup colorful disc discus exotic face fish fishes flat head heckel life marine ocean pattern pet pets pompadour popular portrait red reef reefs sea shape shaped specie stripes symphysodon tropical underwater water wildlife