Check the listing for details. Fish Mate P21 Pond Fish Feeder. Condition: New. Listed at 74.99 USD. Automatic fish feeders are no longer just for holidays! These feeders have become increasingly popular for permanent aquarium and pond use, as they disperse food over several hours to keep fish active and reduce the danger of over-feeding. Designed for ponds and large aquariums, the Fish Mate® P21 Pond Fish Feeder will dispense food slowly over a 5 hour period for approx 21 days. The fully weatherproofed P21 may be pole-mounted at waters edge or suspended over the water.Enough to feed for approximately 21 days!Food served over several hours - keeps fish active and reduces danger of overfeedingAdjustable feed quantity and timing for all fish foodsEasily suited to all ponds and large aquariumsReliable and accurate quartz timerOver 1 year’s continuous use from 1x AA battery Battery condition indicator Fish Mate FishMate Ani Mate AniMate ANI211 211 P21