Nkhata Bay (standard electric yellow)
A variant of Electric yellow cichlid (Labidochromis caeruleus)

Photo: The original uploader was Ged 02 at English Wikipedia . · CC BY-SA 2.5
The bright solid-yellow form with black-edged dorsal and pelvic fins that dominates the aquarium trade, originating from the Nkhata Bay region of Lake Malawi.