I have 8 cats, but 1 of my 8 cats do not like to eat wet food, I tried every kind I can possibly find, so all she eats is DRY FOOD. I also find that my other 7 cats that eat both kinds of food dry & wet are stronger and fatter, and the one that doesnt eat wet food looks skinny. IS THIS A PROBLEM? IS IT BAD THAT SHE DOESNT WANT WET FOOD? WHAT CAN I DO?