I've had this pacman frog (Flubber) since January 2010 and he has only grown a few cm's since then. He's now 5 1/2 (around) cm's, but I don't really know why he's so small for his age because he's very active, and usually eats large crickets every other day. He stopped eating almost 2 weeks ago and has been starting to look very thin. He still jumps around and is active but just acts as if the crickets aren't there. He doesn't eat worms like butter worms or wax worms, he just doesn't really notice them on the ground (and didn't before) and I don't know what to do. When I gently touch behind him, he jumps up and hisses (and tries to bite me!) and he croaks sometimes too, but he still isn't eating the crickets! Thanks...