My oldest bunny Boo (in userpic) will be turning 6 this spring. Lately he's lost a bit of weight and although he's always been a clumsy bunny, he's been falling over more than in the past. I'm not sure if it's age or something else. He has a vet appointment on Wednesday to check his health, but until then I'm looking for a good way to fatten him up. His appetite is still good but I'm wondering if his cage-mate Peeka is eating all the food before he can, so tonight he'll be put into his own cage for a couple of days. I want to give him some special food, perhaps critical care powder mixed with bananas. Anyone have other ideas/suggestions? Thanks!