A method for producing fish food, which method comprises the following steps, to be performed in suitable sequence, of: providing porous dry grains with open structure, which grains comprise vegetable ingredients and/or animal ingredients; providing a mixture consisting of a mass of finely ground fresh or live fish food; impregnating the grains according to step (a) with the fish food according to step (b); preserving the thus obtained impregnated grains, for instance by freezing and keeping the grains frozen, freeze-drying the grains or air-drying the grains.