Universel: 2*Aaa Batteries Included, Can Last For 3 Months. Feeds All Kinds Of Fish Foods, Including Flakes, Pellets, Powders And Strips. Ideal For Home Fish Tanks And Aquariums. Can Feed Most Of Pet Fishes, Turtles, Newts And Frogs. Attention: Please Follow Instructions To Set Up For Rotation Times Per Turn, Otherwise The Feeder Won'T Work Feeding Times: Up To 4 Feeding Times Per Day & 1-2 Rotation Per Time. Easy Setup Just Follow Our Manual And You Will Find It Easy To Set 4 Feeding Times On The Machine. Choose The Feeding Times By Yourself. Also The Feeder Has A Button Of Manual, Have Fun When Feeding Fish By Yourself.Install Methods: The Feeder Has 2 Install Methods For You To Choose. One Is To Fix The Feeder To The Tank Wall By Using The Holder. Another Is To Paste The Feeder With Double-Side Sticker On The Tank Cover. Make Sure The Feeder Can Be Over The Water Level To Keep Fish Food Dry.Easy Control: By Adjusting The Slider, You May Increase Or Decrease The Amount Of Food Dispensed Per Rotation. Easily Control The Amount Of Fish Food Dispensed By Yourself.What You Get:1 X Automatic Fish Feeder1 X User Manual 2 X Aaa Batteries