Rusty has died. I had a betta a while ago that simply seemed to die of old age...Rusty was very large when I got him at Petsmart and was fully grown. I think that was what it was because he acted very much the same way, becoming rather listless and uninterested in anything all of the sudden. With the other one I was unable to do anything at all and so I just tried to make him comfortable till the end. I feel saddened by this and I wish I could be sure that I did all that I could for him. He was a very feisty fish while he was well, even during his finrot problems, and was very interested in his surroundings. I don't regret buying him from Petsmart before the little cup he was in broke that feisty spirit. I'll miss him and I probably won't get another betta. It may sound foolish of me and possibly it is just the moment. Anyway I appreciate the help and advice I got about him from everyone but most particularly Rose who has been a good friend. I will probably still come around this forum and hopefully share the benefit of my experiences as a betta keeper with others.