So I have recently changed max's food from puppy chow to Diamond large breed puppy food. I have read some reviews and heard some more people say that diamond is a good brand. He never had very good looking stools from that puppy chow, and now it seems like they are worse then before. very runny all the time. Smells completly horrible too. I changed the food over very slow over about a weeks time. He has been on completly diamond food since friday. Any ideas on what i should do, just wait longer?