Attention: Press the 12 or 24 timer button, the product will rotate once, and the indicator light will also go out. This is a normal state. Then the timer is start, and it will automatically feed at the time interval you set. (Don't press any buttons halfway, especially manual buttons. After pressing manual, the timer will be cancelled.) Manual and Automatic Mode : Press the manual button to feed immediately. Press the time button to set the feeding interval to be 12/24 hours, and the feeder will automatically feed the fish at the time you set. Adjustable feeding amount: The size of the food outlet on the material bucket can be adjusted according to your needs. Food moisture prevention : Closed material barrels can keep fish food dry to a certain extent without blocking the outlet. This feeder is suitable for fish food in the form of strips, powders, granules. Easy to install: Two installation methods. You can attach the feeder to the wall of the aquarium using a mounting bracket, or use double-sided adhesive to attach it to the lid of the aquarium. Specification: Capacity: 100ml Size: 12 x 6cm Applicable particles: less than 5mm Clamping thickness: 5-15mm Package Includes: 1pcs x Fish tank feeder 1pcs x Stand 1pcs x Flat stand 2pcs x AA batteries Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.