Rafael Pereiro started with the aquarium hobby some 30 years ago when he collected cichlids in the artificial lakes of Montevideo, Uruguay. At that point the fish were Chanchitos (Australoheros facetus) and color Castañetas (Gymnogeophagus sp.), and a many Poeciliids like Jenynsia multidentata and J. lineata. As time went by he would acquire larger aquariums and built some pools where he also kept native Crenicichla and catfish.
later on he moved to La Coruña, Spain, where he continues with the hobby, specially South American cichlids.