What kind of stones was it? Were hookworms ruled out? I have 1 w/colitis & it's triggered by beef. She also has to be on a strict low fat diet.
I think his diet needs to be addressed, to control his colitis & to prevent any future stones...what food does he eat? I've read that home cooking is the best for this condition. There's many vet nutritionist to choose from, it's best to have a diet specially formulated for the pet's needs. Many YT'ers recommend Dr. Remillard from
PetDiets - VNC putting your pet's health first .. for more than 20 yrs!.