A popular food fish, often raised on fish farms, the blackchin tilapia has been introduced to a variety of waters, worldwide. It is common in parts of Florida and Hawaii. The blackchin tilapia typically has irregular blobs of black coloration on its head and the forepart of its body. This fish commonly inhabits pure saltwater environments. It can also live and breed in freshwater. Females carry the eggs in their mouths after fertilization.