I recently adopted 2 russian blue mix kittens and they are magnificent. One of my good friends who has two cats already recommended me to feed them indoor food. I was wondering if indoor food is ok for kittens or if I should continue feeding them the Purina Kitten Chow. She said that it may make the litter box smell better. I know Nutro has their Complete Care Indoor Kitten food, but they are a bit pricey for me. I was thinking more along the lines of Purina Cat Chow Indoor Fomula. They are 9 weeks old and ate a variety of different foods at their foster mom's house. Thanks in advance of any advice.