Our fat, healthy green tree frog just had one of its hind legs almost completely severed by the gecko that shares its tank. It appears to have been a case of mistaken identity, thinking the little twitching thing around the corner was prey . Now the leg is dangling by a thread at the knee joint. I'm assuming it's best to pull off the remainder, and treat the joint with something (I've had great success with Sulphadizone in the past). We're hoping not to lose him. He still seems to be hopping around, leaping from tank side to tank side without problems at this point. Anyone have any other ideas?