The fish feeder for professional use. In conjunction with a recirculation system an ideal supplement.product Info: Feed size 0.2mm - 10mmAdjustable feed quantity of 5 grams up to 250 kg per dayScattering range 2 - 12 metersCable length up to 200m per machine (system dependent)Speed of the propeller scattered & the Screw Auger, infinitely variable changable Each machine operates the same regardless of whether 2 meters or 100 meters away the control! UV - resistant plastic12 volts D.C. to 30 volts D.C. variableno standby mode - energy efficient1amp power consumption per hourEasy handling and operation see: Formula-Feeding-CalculatorContainer sizes from 10kgAccurate and regular feeding amountsBalanced growth & stress reduced feed intakeFeeding duration 1-99 sec and feeding intervals from 1 to 99 min adjustableDay and night rhythm is controlled by the timerFlexibility for both indoor and outdoorLabor and saving time