****ITS BEEN USED *****Small Pond Filter for 75-300 Gallon Tank, Aquarium U-V Filter Green Clean Machine Submersible Powerful Pump Canister Filter 600GPH for Fish Turtle Tank Saltwater Freshwater Crystal Clear Green Killing

Additional Details from the Manufacturer

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More features

• CRYSTAL CLEAR - Turns CLOUDY and GREEN water crystal clear in 3-7 days. The larger the fish tank, the longer it takes. Reduce the number of water changes in the fish tank.
• SEPARATE SWITCHES - Control the water pump and fish tank light separately. When you only want to use the aquarium filter function, you can turn off the fish tank U-V light separately.
• DOUBLE FILTRATION - First stage Biochemical Sponge Filter. Second stage 254nm wavelength U-V Light treatment.
• EASY TO CHECK LIGHT UP - You can easily check that the light is on from the outside of the machine, don't need to take the machine apart to see it.
• SMELLS FRESH - Once the fish tank is full of green will be accompanied by the smell. This green killing machine can reduce the unpleasant smell in the fish tank.