6 month old eating every 5 hours

Lily • Phoenix Issac 11/19/16 💙 ~ 💗 Annie Lucille 12/10/18
Is this normal? My 6 month old suddenly only wanted a bottle every 5 (sometimes even 6) hours and it's only a 6oz bottle. He used to drink 8oz every 2-3 hours and suddenly started doing this. He doesn't seem to be dehydrated, but i'm worried. Does this mean he is ready to start eating other foods?