I would break pieces off as needed and then put it in a defroster like this so that it doesn't go everywhere before your fish can eat it: https://www.algaebarn.com/shop/aquarium-supplies/gourmet-defroster-pro/How is everyone preparing their Fish Frenzy? Just breaking of a piece and putting in tank after it thaws a little? Does anybody take the package and break it down into smaller individual servings/cubes? Adding anything to it?