I cannot believe the difference in growth and deeper color in my 20 year+-koi after deciding to "gamble" on Kenzen Koi Food Primary Diet Floating 7mm pellets. In the 2 years I have been using this amazing product, my fish have grown more than they did in the last 10 years. Neighbors, family and friends have also noticed and commented on their remarkable growth, the brilliant sheen and deeper coloration of each fish. My pond's water is so much clear now as well, just as mentioned in the product's advertisement. My fish love it. You fish will, too! In "gambling" here, you have nothing to loose and much to gain Thank you, Kenzen, for a super product worth every penny. I'm "hooked" for life!! John Salce