It can't be any other grains... there is only one (oats). But sorry it didn't work out for Peanut man!
Jackson does great on it... we're rotating back in the grain-frees right now though and he's doing awesome on it too. Grasslands right now. I'm so disappointed that the bags are getting smaller though and the price is staying the same.
I may just stock up on a few bags now... the formula is changing a little bit.