My bad! Certainly don't rush, i'm glad you are helping me with this at all :]
I'm feeding the vitality plus as a supplement to their pasture, as to em it seems pretty balanced, but the ration balancers seem like they would be a better option. I know that we are low on Selenium in our soil, and both of them had a selenium supplement in them.
Do you think that adding Apple Cider Vinegar would disrupt anything? My pony is on it at the moment under directions from the Vet.
I've never been good with feeds!