sharply concave. they are distinguished by dazzling colors: golden on the sides, and bright blues and greens on the sides and back. mature males have prominent foreheads protruding well above the body proper. females have a rounded head. females are also usually smaller than males. out of the water, the fish...
sharply concave. they are distinguished by dazzling colors: golden on the sides, and bright blues and greens on the sides and back. mature males have prominent foreheads protruding well above the body proper. females have a rounded head. females are also usually smaller than males. out of the water, the fish...