Hi if unheated then there is really no point in very high protein foods as most of it they will just *!*%*! out i have tried a 45% protein food and even that was too much, you can try queni koi japan mix that is supposed to be a very good food, i am currently feeding orchard fisheries premium food which has been great, i am awaiting my free sample of japan mix from queni koi and if its good i may mix the OF premium with it in the future
