I have three pugs, one of which is having some problems right now. He is knuckling over. Which Honest Kitchen food would you recommend?

Hello,

I have three pugs, one of which is having some problems right now. I didn't realize it until recently, but his knuckling over (pretty minor) is probably caused by too much protein. I have tried several lower protein dog foods and have not found one that has solved the problem. I had him on Eagle Pack (not the holistic) for about 3 weeks and he turned up with blood in his urine. I immediately switched him to the holistic Solid Gold food and added Apple Cider Vinegar with water to his food to help clear out the bladder problem. I'm VERY frustrated because now he is eating poop again! So my question is which Honest Kitchen food would you recommend? I need to keep his protein down to help eliminate the knuckling over, but want to make sure that he gets all the proper nutrients.

Terri