Yes, put both pinks in at once. And if you are feeding one large pink now, when you go to two, I'd drop the size down a bit to medium. I'd feed double pinks for at least four to six meals. I guess it depends more on how small the fuzzies you can get will be. If they are big fuzzies, it's safer to stay on double pinks longer. But you can always go by the width of your snake, too.