Thanks for the pointers, Fishin. I will continue with feeding just once a day, and skip a day of the week as well. I didn't know about the skipping a day, and that seems to make lots of sense. I bought the koi food at PetSmart, and it was specificallly for koi, and more expensive that some they had. I agree, better quality makes less poop. I've proven that fact with both dog and cat food as well. Cheap is NOT better! You often use more cheap and get far more waste than you need in the better quality. Do you or anyone have a brand that is known to be good quality, and available? What do you recommend that I get for the smaller koi? I can get fresh good quality food from the pet store I go to, but it is not floating type. I use it for my aquarium. He has many types for veges and protein, etc. I assume I should stay with koi food, but I don't need food for fry, just smaller koi, and these pellets seem really small, but they are not able to swallow them. Now, the bigger fish, like Shamu, yeah, they vacuum them up! I'm glad it's ok to feed at least once a day (I do feed a little when I want to show the fish to friends, too) since I really enjoy watching them come up. So far, all of the new koi come up to feed, and I see all my goldies, too, except one little one.