Mine are 5 weeks now,i started them off on R C starter,soaked,mashed up with a spoonfull of tinned butchers tripe puppy,then poured some warm water on it and mashed it up,they love it,they are now having raw mince meat mixed in,at the same time i started them on food i gave them goats milk which is very,very good for them,i actually give them Whelpi mixed in the milk for added developement,too.