Convict cichlids: female on the left, male on the right.
239.15; 248.12; 399.05-06;
Deanpemberton [CC-BY-SA-3.0] via Wikimedia Commons
Convict cichlids: female on the left, male on the right.
239.15; 248.12; 399.05-06;
Deanpemberton [CC-BY-SA-3.0] via Wikimedia Commons