Timothy or meadow hay for daily are both fine. Ing hay will make a lovely treat.
As hay should make up to 80% of the food intake, piggies quite enjoy it when you vary a bit. It will also help you in case your usual hay is for some reason not in stock or not as good if your piggies are used to other flavours and textures.
You can get a small amount of alfalfa hay and feed about one handful per day until it is used up, but alternatively, your youngsters will get the extra calcium and protein from unlimited pellets until the weekly growth rate is starting to slow down (please feed rather often but smaller amounts than just topping up; youngsters can pee into their bowls). The actual extra amounts needed are in fact very small.
Make sure that you include one high vitamin C veg every day in their bowl of mixed veg, like a slice of pepper (any colour), a bit of broccoli (any part) or a sprig of coriander/cilantro, parsley, dill, mint or basil. Please vary; the wider the variety they are getting used to, the less picky they will hopefully become later on.
