The Quanlong QL-400 Submersible Aquarium Water Pump is a compact and efficient solution for creating continuous water movement in small aquariums and water features.

Operating at just 2.5W, the QL-400 delivers a water flow of up to 250 liters per hour, helping circulate water and support better movement throughout the tank. Its fully submersible design allows it to operate directly underwater, making installation simple and convenient.

The pump can be used for small fish tanks, aquariums, fountains, water features, and compatible filtration systems, depending on the requirements of your setup.

Key Features

• Quanlong QL-400 water pump
• 2.5W low-power operation
• Flow rate up to 250L/H
• Fully submersible design
• Compact size for small aquariums
• Helps improve water circulation
• Suitable for aquarium fountains and water features
• Can be used with compatible filtration systems
• Easy to install and maintain

Product Specifications

• Brand: Quanlong
• Model: QL-400
• Product Type: Submersible Water Pump
• Power: 2.5W
• Maximum Flow Rate: 250L/H
• Installation: Fully Submersible
• Application: Aquariums, Fish Tanks & Fountains

Suitable For

• Small aquariums
• Nano fish tanks
• Aquarium fountains
• Small water features
• Water circulation systems
• Compatible filtration setups

Main Benefits

• Provides continuous water circulation
• Helps prevent stagnant areas in the aquarium
• Low 2.5W power consumption
• Compact design is ideal for small tanks
• 250L/H flow provides efficient circulation for suitable applications
• Fully submersible for convenient installation
• Suitable for fountains and decorative water features

Installation & Usage

1. Place the pump securely on the bottom of the aquarium or water feature.
2. Attach compatible tubing or accessories if required.
3. Ensure the pump is completely submerged before operation.
4. Connect it to the appropriate power supply.
5. Position the outlet to direct water where desired.
6. Monitor the water flow during operation.

Cleaning & Maintenance

• Disconnect the power before removing or cleaning the pump.
• Clean the intake regularly to prevent blockage.
• Remove debris and algae from the pump housing.
• Clean the impeller periodically to maintain proper performance.
• Do not use soap or household detergents.
• Ensure the pump remains properly submerged during operation.

Package Includes

• 1 × Quanlong QL-400 Submersible Aquarium Water Pump – 2.5W

Tubing and additional accessories should be confirmed according to the manufacturer's package contents.

Safety Notes

• Never operate the pump dry.
• Ensure the pump is fully submerged before switching it on.
• Disconnect the power before handling or cleaning.
• Keep electrical connections and plugs dry.
• Do not use the pump if the cable or housing is damaged.
• The stated 250L/H flow rate is a maximum rating and actual flow may vary depending on tubing, water height, and setup.