Automatic fish feeder - feeds fish in the aquarium stably and quantitatively, helping to prevent issues caused by missed feedings due to schedule constraints. Timer function - supports up to 2 meals per day. Built-in digital clock for improved accuracy. Operates in both automatic and manual modes. Simple operation - choose between automatic or manual feeding as needed. Adjust food portion and feeding times using sliders; dispensed amount can be increased or decreased by rotation. Easily control the quantity of fish food dispensed. Widely used - suitable for aquariums and home fish tanks. Can feed most pet fish including goldfish, tropical fish, large and small fish, turtles, salamanders, and frogs. Size: 13.5 x 6.5 x 5.2 cm