Can anyone help with this? I'm not sure what would cause this. Hes the lone clown after my cat figured out how to remove my lid and I believe either got the other clown or he jumped and then she got him. Either say i cant find him. That was 2 weeks ago. I also have a blenny that barely comes out of his hole. The clown stays in his little cave and hardly ever emerges. He's also not eating. But he stopped after the other clown went missing. Up until then he ate like a champ. The other clown was being treated for intestinal parasites and obviously this lone clown was eating the medicated food as well. I'm not sure what is going on. There has been nothing to injure him. Its also the only fin that looks like this.