These small, select, whole mussels are well cleaned and fresh frozen. This is an excellent source of marine protein for a variety of marine fish. Instructions for use: push out the required amount of cubes into a recipient. Let them defrost, without water, at room temperature during minimum 10 to 15 minutes before feeding. Frozen foods may defrost in transit, please return to the freezer as soon as possible upon delivery. Ingredients Mussels.