water level in fish tank

This device is specially designed to keep stable water level in fish tank. Equipped with independent high and low liquid level sensors, it realizes automatic water supplement and overflow prevention. Built-in anti-shake algorithm avoids false triggering caused by water ripples, plus 1-hour dry-run protection safeguards your water pump. Easy to install, widely suitable for various fish tanks, reef tanks and planted tanks.

• Accurately Stabilize Water Level in Fish Tank with Dual-level Safety Design

  Independent high and low dual sensors monitor the water level in fish tank in real time. The pump automatically starts to replenish water when the liquid level is too low, and immediately cuts off the water supply when reaching the preset high level, completely avoiding tank overflow caused by excessive water injection.

• Intelligent Anti-shake Algorithm to Prevent False Triggering

  Built-in signal de-jitter function, slight water ripples generated by wave makers, filter and water changing will not misactivate the pump. It keeps stable monitoring of the water level in fish tank, ensuring long-term reliable automatic water replenishment.

• LED Indicator Light Clearly Displays Working Status

  Different light modes correspond to different working states: slow green flash for water refilling, steady green light for normal water level, fast green flash for full water, red light for power supply. Once dry running occurs, the red light flashes rapidly to remind you of abnormal operation.

• 1-Hour Dry Run Protection Prevents Pump Burnout

  If the low-level sensor keeps detecting no water and the pump runs continuously for 1 hour, the system will automatically cut off the pump power and trigger red light alarm, effectively protecting the water pump from damage due to idling.

• Plug-and-play Installation with Complete Supporting Accessories

  Equipped with 1.8m PVC water pipe, fixing bracket, check valve and detailed user manual. Clip-on installation requires no modification to your fish tank, easy to assemble for both novice and experienced aquarists.

• Wide Compatibility for Multiple Aquarium Scenarios

  Compact size will not occupy extra tank space, perfectly fits freshwater fish tanks, saltwater reef tanks, aquatic planted tanks and breeding tanks. Constant stable water level effectively avoids stress on fish, coral and aquatic plants caused by frequent water level fluctuation.

Application Scenarios of Water Replenishers Water replenishers (including automatic/pressure-fixed water replenishment devices) are used in aquarium, HVAC, industrial, civil, agricultural, and special equipment fields. Their core functions are to automatically maintain stable water level/pressure, compensate for evaporation and leakage, and ensure continuous system operation. I. Aquarium & Pet Breeding (Most Common Civil Scenarios) • Fish tanks/aquariums: Automatically replenish water lost to evaporation, maintain water level, and prevent dry burning of heating rods and water pumps; suitable for long-term unattended use (business trips, travel). • Reptile terrariums: Provide stable humidity and drinking water level for lizards, snakes, frogs, etc. • Mini waterscapes/paludariums: Maintain landscape water level and reduce manual maintenance. II. HVAC & Heating Systems (Core Industrial/Commercial Scenarios) • Central air conditioning systems: Circulate chilled/cooling water, compensate for evaporation and blowdown loss, stabilize pressure, and ensure cooling efficiency. • Central heating/underfloor heating: Used in heating circulation for residential quarters, villas, and office buildings to stabilize pressure, prevent overpressure and leakage, replacing high-level expansion tanks. • Boilers/heat pumps/solar water heaters: Automatic water replenishment and pressure stabilization to avoid water shortage, vaporization and pipeline rupture. • Hot water systems in hotels/hospitals/schools: Stabilize water pressure and temperature to avoid sudden temperature changes. III. Industrial Production & Cooling Systems • Industrial circulating cooling water: Used for water replenishment and pressure stabilization in cooling systems of reactors, compressors, heat exchangers and data center rooms in chemical, metallurgical, electronic, pharmaceutical and food processing industries. • Process water systems: Maintain continuous and stable water level/pressure for production lines in textile, paper making, electroplating and other industries. • Power plants: Water replenishment for boilers and pressure stabilization for circulating cooling systems. IV. Civil & Building Water Supply • Secondary water supply in high-rise/residential areas: Replace roof water tanks, stabilize water pressure, and avoid water outages and water hammer noise. • Fire water supply systems: Maintain pipe network pressure to ensure reliable water supply in case of fire. • Rural/temporary water supply: Pressure-stabilized water replenishment for construction sites, field operations and rural tap water. V. Agriculture & Landscaping • Greenhouse irrigation: Automatic water replenishment to maintain water level in nutrient solution tanks/water tanks for drip irrigation and sprinkler irrigation. • Gardens/fountains/waterscapes: Stabilize water pressure to ensure fountain effects and compensate for evaporation and leakage. • Aquaculture: Automatic water replenishment for fish and shrimp ponds to maintain stable water level and quality. VI. Other Special Scenarios • Laboratories/clean rooms: High-precision water replenishment and pressure stabilization for constant temperature and humidity air conditioners and ultrapure water systems. • Humidifiers/steam equipment: Automatic water replenishment for industrial humidifiers and steam generators. • Energy storage/battery cooling: Water replenishment and pressure stabilization for liquid-cooled energy storage systems and power battery test benches.