Hi. I'm new on here but I was looking for some help. I have two cats. Gandalf is an 8 1/2-9 month old cat, who is pretty thin and very active. Mooch is an older cat (he was when we acquired him so not sure of the age) probably at least 3 years old, and very overweight. We would like to try to get Mooch on maybe a special diet but with Gandalf being so thin we actually need her to gain some weight. So I was wondering if anyone out there had any ideas on how we can bring both our cats to a more healthy weight for their ages. (We've tried giving them seperate bowls, but they don't listen to sensibility. ) Anyone? We would appreciate any information or help.