Aquarium ATO Auto Top Off for Freshwater Saltwater Aquarium for Both Reef and Fresh Tank with USB more safe

This 5V high-flow auto top-off system (dimensions: 2.95''×1.38''×3.27'') is crafted from PETG material, compatible with both freshwater and saltwater aquariums. Its compact design fits seamlessly into rimless tanks, sumps, while the precision sensor maintains a customizable 1.34''-1.77'' water level, automatically stopping overflow and preventing dry-run pump burnout. Ideal for reef tanks, planted aquariums, and high-evaporation environments, it delivers reliable high-flow water replenishment, eliminating manual top-ups and ensuring stable water parameters for healthy aquatic life.

• Smart Auto Top-Off System, 5V Low Voltage Operation – Effortlessly maintains ideal water levels for freshwater and saltwater aquariums, eliminating manual top-ups. The 5V USB-powered design ensures safe, energy-efficient use, compatible with standard power banks and USB adapters, making it perfect for reef tanks, planted aquariums
• Compact 2.95''×1.38''×3.27'' Size, Customizable Water Level – The space-saving PETG construction fits seamlessly into rimless tanks, sump chambers, and small aquarium setups. Pre-calibrated for 3.5–4.5cm water height, with customizable options to match your tank’s specific needs, ensuring stable water parameters without overflow or dry running.
• High-Flow Auto Top Off Pump, PETG Material – Delivers reliable high-flow water replenishment to quickly restore evaporation levels, ideal for large reef tanks and high-evaporation environments. The food-grade PETG housing resists saltwater , ensuring long-lasting performance in both freshwater and marine systems.
• Anti-Dry Run Protection, Precision Water Level Sensor – Equipped with a sensitive float valve that automatically shuts off the pump when the target water level is reached, preventing overflow and pump burnout. The anti-dry run technology safeguards the device, extending its lifespan and providing peace of mind for unattended aquarium care.
• Easy Installation, Versatile for Aquariums – Mounts quickly to tank walls or sump edges with included hardware, no complex plumbing required. Works universally for freshwater fish tanks, saltwater reefs, and reptile terrariums, maintaining consistent hydration levels to support healthy aquatic life and stable water .