This species exhibits a dark spot just above the pectoral fin; this may fade in larger specimens. Black Ear Cats can grow to be over 52" long, including their tails, and sometimes larger. They like to eat and are constantly moving and looking for food. They will, like most catfish, eat any fish that fits into their mouths. These Black Ear Catfish can live pretty well from about 70 to 80 degrees F., but they're probably most comfortable from about 75 to 78 degrees F.