I've had mine more than a year and I started out feeding them the same pellets the breeder was so they should have gotten all they needed since birth. They still want to eat as much pellets as possible. Now we mostly use a mix of steel cut barley, whole oats, BOSS, and a cheap pelleted horse feed for vitamins and minerals instead of rabbit pellets. The MR always leave a little behind whether it's a grain mix or straight rabbit pellets but the champagnes inhale every last rabbit pellet they are fed.