I'm not sure how to sex toads...once you are able to post a picture or two, one of the more experienced toad owners on here might be able to help. I've had experience wtih three legged frogs, but they were aquatic dwarf frogs and so their disability did not affect them that much swimming around. I am sure your toad will be just fine. As long as he is able to hunt down his food (this is where a smaller feeding bin might come in handy) and he has all his requirements met (including lovin' from your daughter and her friends) I think he is going to be a plump, happy, well-loved toad. Who could ask for more???