My Koi love Koi fuel food. I’ve been using it since it came out in the spring and just finished my second 10 pound bag so I ordered another 10 pounds.
The product seems to be excellent. The problem is the bottle it is delivered in. Mine leaks badly when pouring the garlic boost, so much so that it ends up as a pool on the counter top. Hopefully mine is the outlier and other people don't have the same problem.