The fish tank filter pump is a UV green water killer to increase oxygen for 40-80 gallons of saltwater and freshwater tank. Key Features: 1. Included: • 1x Filter Pump, • 1x Timer Controller, • 1x Rainwater Bar, • 1x Air Valve + Tube 2. Efficient oxygenation, circulating and purifying water quality. 3. The fish tank filter pump is a UV green water killer to increase oxygen for 40-80 gallons of saltwater and freshwater tank. 4. Fish Tank Filter Pump built-in 6-watt water pump with activated carbon filter cotton which can better filter water 5. Ultra-quiet motor and internal pump multi-silent noise reduction processing make it quieter than external aquarium filters, 6-leaf wear-resistant ceramic shaft core is high-quality tiles, strong power, and no rust, offering your fish a quiet and comfortable tank 6. 4 functions include water purification, filtered water, water circulation increasing oxygen, and pumping water 7. Turns green water to clear in 3 to 7 days 8. High and low natural rainwater oxygenation can also improve aquarium ornamental 9. In addition to physical filtration, the filter pump has activated carbon filter cotton in it, the mesh filter cotton can also help the fish tank quickly form a nitrification system 10. Fish tank filter pump built-in 8-watt U-V bulb with a timer 11. Can select 4 hours, 8 hours, or 24 hours of timing for longer service life 12. Purify green water and create a healthy and clean living environment for your underwater pets 13. The filter pump comes with an external U-V light timer controller 14. Has tube protection, and an O-ring seal is good waterproof, is easy to maintain, and uses up to 8000 hours 15. Safe and replaceable 16. The fish tank filter pump comes with 3 suction cups, and 1 spare suction cup, which can be installed vertically or hori...