It sounds like shes the perfect size. 9 Lives is a very very low quality food, though. I wouldn't even feed it to my fish. Purina ONE isn't much better, maybe a just step up, but not a huge difference. You don't want anything to do with grocery store brands, honey. Stay away froms foods that have by-products, corn, unknown protein sources (i.e. "animal" fat, "poultry" meal, etc.), wheat, etc. I'm not sure what formula you feed, but here are the ingredients for 9 Lives Tender Sliced with Real Chicken in Gravy:
Water sufficient for processing, meat by-products, chicken, wheat flour, soy protein concentrate, chicken broth, modified starch, steamed bone meal, animal digest, wheat gluten, guar gum, titanium dioxide, sodium tripolyphosphate, glycine, potassium chloride, choline chloride, caramel color, salt, taurine, vitamins (vitamin E supplement, vitamin A supplement, thiamine mononitrate, niacin supplement, d-calcium pantothenate, riboflavin supplement, pyridoxine hydrochloride, menadione sodium bisulfite complex, vitamin D3 supplement, folic acid, biotin, vitamin B12 supplement), minerals (ferrous sulfate, zinc oxide, manganous oxide, copper sulfate, calcium iodate, sodium selenite), iron oxide.
The bad ingredients in this are meat by-products (feathers, intestines, beaks, etc of an unkown animal), wheat flour, soy, animal digest (what animal did that come from?), wheat gluten and menadione sodium bisulfite complex (which is known for many many healt problems.)
Purina ONE is not much better:
Chicken, chicken by-product meal, soy flour, corn gluten meal, brewers rice, animal fat preserved with mixed-tocopherols (form of Vitamin E), fish meal (source of DHA), whole grain corn, non-fat yogurt, poultry by-product meal, animal digest, wheat gluten, phosphoric acid, salt, brewers dried yeast, potassium chloride, choline chloride, taurine, zinc sulfate, Vitamin E supplement, ferrous sulfate, manganese sulfate, DL-Methionine, niacin, calcium carbonate, Vitamin A supplement, calcium pantothenate, thiamine mononitrate, copper sulfate, riboflavin supplement, Vitamin B-12 supplement, pyridoxine hydrochloride, folic acid, Vitamin D-3 supplement, calcium iodate, biotin, menadione sodium bisulfite complex (source of Vitamin K activity), sodium selenite.
Well, atleast this one actually have real meat as the first ingredient. But it's not much better. Again with the by-products, animal digest, wheat, menadione and soy. This one also has corn, brewer's rice, animal fat, fish meal (what fish? Who knows?) and poultry by-product. Eww!
I HIGHLY HIGHLY suggest this food, Innova EVO:
Dried Chicory Root
Viable Naturally Occurring Microorganisms
As you can see, Innova EVO is MUCH healthier than 9 Lives and Purina. Well, it's your choice. Good luck!