I myself really only keep enough for 1 meal at a time...but my uncle likes to catch a lot and freeze them for large fish fries. He will take a gallon ice cream container, put some fillets in it then put water in it until it just covers the fillets. So then when you have more fillets, you can just put them right on top of the other layer, add mor water, and freeze. Then most of the time when it starts to thaw out, you can just cook a layer at a time.