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External drive controller
Allows user to keep their Tank parameters stable
the water in the water tank can be changed easily and freely
rich color
Voltage:100-240V 50Hz
Aquarium Sponge Filter-Biochemical Sponge Repital Heat Lmap External drive controllerFeatures: 1. Provides both mechanical and biological filtration for your tank. The air infusion chamber produces numerous minute bubbles which promotes gas exchange process and increases dissolved oxygen level in water. 2. Easy to set up Just connect the unit with an air pump thru an airline. It provides both aeration and filtration for your tank. 3. The sponge traps waste particles mechanically and cleans the water without trapping baby fish. It