I've been feeding mine a rotation diet of Wellness Core Grain Free Original (Turkey & Chicken) & Wellness Complete Health Super5Mix Lamb, Barley & Salmon. They're been doing very well on it, but Momo & Princess has been getting softer stools towards the end of their # 2's just recently (TMI!

). They both had G.I issues in the past. Mimi has been getting very finicky & I've been trying to get creative w/her toppings & I'm running out of ideas! Turbo is allergic to pumpkin...he throws up. Not sure if sweet potato & potato are in the same family, but I've always heard that grain free & potato free was best for canines. Raw is probably the best way to go, but the closest we got was Honest Kitchen & their little tummies couldn't handle it. So, I've been doing some research over the last few days w/the help of dogfoodadvisor.com:
I've narrowed it down to 3, all have NO potato & are Grain Free w/Probiotics.
1. Darford Zero/G Turkey & Chicken.
Darford | Culture
I've ordered this & am picking it up on Friday.
2. Amicus (Horizon) Adult.
Horizon Pet Nutrition
A special kibble just for small breeds w/small bites! We'll def be trying this soon...
3. Pulsar (Horizon)
Not sure what the percentage breakdown is for this food for protein level, fat, etc. (not on website).
Low glycemic food, good for dogs w/diabetes or weight problem.
4. Nutrisca
DOGSWELLŽ NUTRISCAŽ Grain Free Potato Free Premium Dog Food
Also an excellent kibble. I did not include this as my top 3 bc of 2 small reasons. 1.) no probiotics 2.) protein levels were a little too high for my comfort zone.
I know somebody was asking for a potato free, grain free kibble...I could not find that thread. Hope this helps! If anyone has tried any of these foods above, any feedback will be much appreciated.