You know ill tell you this, my first frog, the one in the avatar was rescue, different situation and way different level of neglect then yours. Worse by much. I have no idea how he managed to live through it. It was a very long battle to get him recover, about 7-8 months i think, he didnt make it at the end, i dont know what was it about this particular frog, but it really got under my skin, i like to think he lived for a reason and got in my life for a reason too, that is why he is in my avatar, as constant reminder how important it is to educate people on proper care of frogs, how many people see them as a toy and behave accordingly. Sometimes it makes me mad, but people like you, who care, always get my respect and hope. Im sure your brother will watch you and will learn, how old is he anyway?