Erik Wolla, from Horten, Norway, has kept tropical fish as a hobby in his childhood and started up again as an adult in 1995. His main interest is South American species, especially loricariids and cichlids. He has been to Peru in 1996 and 1997 to collect fish as well as enjoy the extreme diversity of the flora and fauna of the Amazon rain forest. Erik is a member of Drammen Aquarium Club (DAK) in Norway and the Nordic Cichlid Society (NCS).