I feed Wagg optimum, and I rate it much much higher than P@H or Excel. (Other than my current availability crisis!) My buns have had both before, and even with the mountains of hay I feed they still always had dark, smallish poops. I changed to Wagg about a year ago and can honestly say my buns, and guineas have never been in better condition. The coats feel amazing, the general body condition of them all feels improved and they are just full of beans all the time. I know Wagg dog food is pretty shoddy, they should definitely stick to rabbit food!