Precise Timer & Multi-Stage Feeding: Program 1 to 4 automatic feedings per day, giving you the freedom to set both feeding times and portion sizes. This completely eliminates the risk of forgetting to feed your fish during business trips, overtime work, or vacations; your fish will be fed according to a precise schedule, preventing both under- and overfeeding. Large 200ml Capacity & Adjustable Flow: A single full refill lasts for several days, saving you the hassle of frequent refills! The dispensing opening can be flexibly adjusted to suit specific species (e.g., tropical fish, goldfish) and the number of fish you keep, minimizing food waste and water pollution, while also saving you time and energy. Universal Compatibility with Various Fish Foods: Perfectly compatible with a wide range of fish foods, including pellets (small and large), powder, flakes, sticks, and more. No matter what your fish eat, the device can dispense it accurately, so you don't need to change feeders depending on the type of food used. Ultra-Quiet Operation & Large, Clear Display: Equipped with an ultra-quiet motor that operates almost silently – even during the quietest hours of the night – the device will not disturb your family or your fish while they rest. Its large, easy-to-read digital LCD display makes all settings – such as feeding times and frequency – visible at a glance, providing an intuitive user experience with virtually no learning curve. Two Mounting Methods & Rotational Orientation + Easy Refill: Offers two mounting options: a clamp (for open-top aquariums) and a Velcro fastener (for aquariums with rim reinforcements). Installation is simple, stable, and secure, preventing accidental slipping. Once installed, the dispensing direction can be freely adjusted to suit your aquarium's configuration. The sliding top cover allows for easy refilling as soon as the food level drops, without having to disassemble the entire unit. It is powered by two AA batteries, providing 3 to 6 months of battery life (batteries not included).