pair of green terror, andinoacara rivulatus, male and female in bright breeding colors, popular domestic ornamental cichlidae

active adult aequidens aggressive andinoacara animal aqua aquaculture aquarists aquarium background beauty breeding bright business cichlid cichlidae clear colors courtship decorative domestic dominant ecology ecuador elegant fauna favourite female fish fishkeeping freshwater green habitat healthy hobby instinct male nature orange ornamental pair peru pet plant polymorphic popular predator protection rivulatus smart species specimen stripe tank terror threat trade turquoise underwater vulnerable water