| I will assume you are serious and not posting in jest. I am glad your koi are doing well for you. The diet you are feeding is quite a bit off from optimal. I think it would be an easy consensus that it is a very poor diet, but a testament to the adaptability of carp and their hardiness.
Protein should be above 28% or the fish will have to eat too much of the carbs/filers to get the protein needed. Protein in a 32%-38% range is good. The protein can come from plant or animal sources. For the most efficient digestion, protein from seafood/aquatic sources is preferable. Plant-based protein from algae and wheatgerm are preferable to other plant sources. Corn is less digestable. Mammalian protein is not very easily digested at all.
The needs of any fish are quite different from the needs of horses. You should stick with foods intended for fish, and better are foods intended for koi. Yes, these foods are more expensive; but there are reasonably priced ones. In my area the best food available at low prices is the Azoo brand out of Taiwan. The ROC government policy promoting exports makes it notable less than equivalent formula foods, but you have to careful regarding storage of the huge bags.
I'd suggest you alter your approach to feeding altogether. |