Save some money! One commenter says she thinks she saves $130 a year by purchasing fish food in the 5 lb container versus the small packages at the pet store. That makes this TetraMin Flake Fish Food a real bargain. I raise tropical fish wholesale and I do believe that fish food can go bad, but I believe that if you store it in the freezer. You will have no issues what so ever, it is dry too. That making it so it shouldn’t stick together at all, so you can maybe fill that little container from the pet store and put the rest in the freezer til you need another refill. Check out this 5 lb size of TetraMin Flake Fish Food today. Your fish will thank you and your wallet will too.