10L Automatic Pond Fish Feeder. This is an automatic Koi pond fish feeder that can be programmed to feed up to 4 times per day. The Automatic koi feeder is battery operated, batteries last three months. Adjustable food portions from 50 – 1400 grams per day and the food container holds up to 10 litres/4Kg of koi food. The automatic koi feeder is placed on the edge of the pond or quarantine tank and the unique brush dispenser shoots the food into the pond.