Food switch and loose stools... how long?

I just started transitioning my dogs to TOTW from Canidae. Right now they are still on 2/3 Canidae and 1/3 TOTW. The little dog (8 months old) is having some loose stools. I know that is not unusual with a food change, but how long should I expect it to last and when should I get concerned?

Thanks!

You can add some pumpkin or yogurt, and that should firm up poops. I'm really bad... I switch my dogs cold turkey between kibbles, when they get kibble meals. But I always add some sort of digestive aid, and I don't have any problems.

I wouldn't worry unless your pup was having persistent diarrhea. Just stick to the 2/3 Canidae and 1/3 TOTW, or even cut back the TOTW a bit, until Indy's tummy has settled.

I'd just do the switch cold turkey and add some pumpkin.