I have no idea that's what the guys at big als called the fish. I'll be in there tomorrow if there still around I'll take a picture. I think the parents are starting to pick off the fry all the smaller ones are disappearing. I'm feeding extra to insure there not hungry to prevent the fish from eating there fry if that's the case. I still have a good amount just not like a did at first if it's any one I think it's the male eating them. He goes a little blind during feeding times and bites anything that moves. Next week if you can't make it here I'll drive down there with them on my day off.