Just a little tip for all of you who live in the big smoke (auckland) and buy hay from the pet store (especially animates), buy the 5L compressed hay instead of the the big bags. These smell fresher, sweeter and don't have the hard twiggy bits. They're a bit costlier, but your piggies will love it.
But if you have access to a farm where you can get hay from, that's still the best option.
But if you have access to a farm where you can get hay from, that's still the best option.