If your going to kill him the most painless and humane thing to do is freeze him. ( get a cup fill it with him and tank water and freeze him.) He will fall asleep then die. But please treat him with salt baths,quarantine+salt, or look for a goos medicine to treat him with! I hope he feels better! I read this method of putting a fish to rest PAINLESSLY in a book on bettas and it is called anesthesia. It will leave you with guilt ( no matter how you kill him you will have guilt) but at least he died without having to suffer anymore and he dies in his sleep.
Last edited by Maryrox247; 06-10-2010 at 12:20 AM.