I saved a baby bullfrog from being thrown into the garbage. I've had him for 3 days now, he's eating like a champ and somewhat active. He's getting smaller though. He doesn't have any legs yet, but does have some little buds forming. When I first got him, he was about the length of my hand and now he is about half of that. Should I be worried? Is this normal? Any tips or info would be greatly appreciated. Thanks in advance!