so I have a VERY picky kitten that doesn't like any type of dry or wet cat food except dry meow mix which is TERRIBLE.I'm out of options and I just discovered that she likes to eat boiled chicken which I give her as one meal everyday, and cooked fish fillet. I know canned fish like sardines and tuna aren't healthy due to a high level of mercury and preservatives. but I'm guessing fresh fish should be fine if cooked well as it's high in protein and yummy? will it be okay if I give her two or three fish meals per week? is it good for her and will it help her gain a little weight?