[AUTOMATIC&MANUAL FEEDING]Automatic feeding2 different time modes,12h/24h.Feed 1 time in each feeding.Manual feeding:press manual button to control and test the fish feed you meet.Fish no longer starve. [MOISTUREPROOF&HEALTHY]Keep fish feed dry so that won't get wet and moldy.Multiple gears to apply for different feed size and never get blocked.Keep your fish healthier. [ENJOY YOUR GOOD TIMES]Automatically take good care of your fish on weekends and holidays.Feed box capacity:80ml.Powered by 2 AA batteries(not included). [MULTIPLE CHOICE]Suitable for various fish feeds,such as granules,flakes and powders.Perfectly feed goldfish and turtle. [TWO INSTALLATION METHODS]1st method:fix the feeder holder on the tank glass.2nd method:1.Take off the feeder holder 2.Stick velco on bottom of feeder and tank cover 3.Place them together.