Mine looks like its on the edge of death (one fin in the grave and one on a banana peel). I tried several bite sized pieces of red wiggler last night with every light off (as I usually feed) and it didn't even acknowledge the food. After waiting for around for about 15 or 20 minutes, I gave up and let my knife move in and clean up. I have another tank the eel could go to if the tankmates are bothering him but.....I have breeding mollies there with several babies that are just smaller than the worm pieces. I don't want them to disappear. Aothough, I've never seen any fish irritating him and I've read that angelfish and ABK are acceptable tankmates.