Intelligent Feeding - With this fish feeder, you can set 3 automatic fish feeding modes, such as feeding fish every 8 hours, 12 hours, 24 hours. You don't have to worry about starving or overeating your aquarium pet when you go outside. If you want to feed yourself, the automatic fish feeder also has a manual feeding mode that you can choose from. Easy Add Feeding - The automatic aquarium feeder features an open top design for easy addition. quick and easy fish food without disassembly, and an adjustable tiered hatch design that allows you to easily adjust and control the amount of each feed. 2 Ways to Fix - You can choose to take off the protective film and stick it to the bottom of our pond fish feeder, then attach it to the middle of the aquarium or near the aquarium lid; you can also use the clip to fix the edge of the aquarium within 1.8cm thick, then tighten the movable bolt on the clip to fix it. Moisture-proof design - The automatic fish feeder adopts moisture-proof design, which can keep the food in the food box cool and dry and prevent moisture. You can place all kinds of fish food in large pellets, flakes, strips, etc. in the feeder. This pond fish feeder can also rotate 360 allowing you to get into a better feeding position. Quiet Design - The automatic fish feeder only emits 20-40dB of noise. sound when on, which is smaller than a soft whisper, letting you sleep at night without worrying about being disturbed.