Fish Feeder Automatic Dispenser can be set in 2 Models - Manual or Automatic. Just press the manual button to feed immediately, and enjoy the fun of feeding. This Vocation Fish Feeder also can be programmed to feed up to 3 feeding times per day - 8, 12, 24 hours, and you can be free to have a good holiday time. Just open the top fish feed basket of this fish auto feeder to add fish food without removing or disassembling it. And the amount of fish food can be easily adjusted according to the size and species of the fish.The working decibel is 20-30 decibels, which will not disturb your rest. Our Automatic Fish Feeder for Aquarium is suitable for fish tanks and turtle tanks. Easy to fix on the fish tank cover with the thickness of 0 to 1 inch by adjustable clamp base, or fix the auto feeder