I have an albino clawed water frog, hes about 1 1/2 years. My mom gave to me a couple months back, and i discovered he doesn't eat his pellets. He started getting thin and I freaked out a little bit. I end up buying him rosies and he loved them! He plumped up really fast. But it seems to be all he wants to eat. I stopped feeding him the rosies about a week ago and have only been offering him pellets... but he only seems to play with them, not eat them. What else can i feed him? He likes live things that move. I'm wondering if his eye sight is bad and that's why he likes the live food? Hes developing these dark purple vains down his back... is that because hes had a high protein diet with the fish?