How long has Fergus been on it?

I have switched my two dogs [greyhound and lurcher] onto wet. The greyhound is 11yrs and i think she was a bit soft for 6-8 weeks. Now she is fine.

On dry complete she was a little constipated and No 1 was a bit concentrated. I'd say give Fergus a few weeks - maybe i'm paranoid but i think these dry complete feeds have ingredients to keep the dogs addicted. Switching food is like getting them off drugs!