Feeding my fancy goldfishes in big pond. I feed once a day, whatever they will consumed in 8-10 minutes (record the feeding portions). Sometimes I feed twice a day, then it will be 5-7 minutes each. Their foods: goldfish flakes, pellets, and salad supreme (from www.goldfishconnection.com). The salad supreme is a snack, very small portions, and only 2-3 times a week. Every 2-3 weeks, you may increase the feeding portions by a little bit (record it by # of spoons). Do not feed later than 7pm in the evening because of colder temperatures. You can skip feedings by 1-2 days if you are busy and that's not a big problem. But do not try to build up the fish's appetite too fast, build up gradually (only when the fish is fully healthy). The bigger problem is not letting the filter system gets too dirty - more feedings translates to more cleaning. You should clean it once a week. Keep the Biological part of the filter system "un-touched" or Rinsed lightly in "fish water or pond water."