coospider-repta S9F Aquarium Filter, 500 GPH UV Steriliser for 284–757 L Tanks

The coospider-repta S9F is an internal aquarium filter designed to circulate and filter water while helping remove green water, with a 500 GPH flow rate for 75–200-gallon tanks.

• 500 GPH flow rate for 75–200-gallon tanks — supports water circulation in larger aquariums.
• 7W UV sterilizer with a 253.7 nm light band — targets green algae in the water.
• Sock filter media — captures fine impurities and helps prevent dirt from leaking back into the water during cleaning.
• Low-suction filtering mode — draws fish waste and uneaten food from the tank bottom.
• Adjustable bubble-size outlet — supports oxygenation and wave-making.

Keeping aquarium or turtle-tank water moving while managing fine waste and green water can call for more than one function. The S9F brings filtration together with circulation, oxygenation, deodorization and wave-making in one internal filter. It is also suited to freshwater and saltwater tanks, turtle habitats, and cold plunge pools or tubs that need filtration and water-quality maintenance.

What water-care functions does the coospider-repta S9F provide?

The S9F combines water circulation and filtration with green-water removal, deodorization, oxygenation and wave-making. Its UV system targets green algae, while the filter sock captures fine impurities. The system is designed to help make aquarium water crystal clear in 3–7 days. Its UV band is also intended to help keep tank environments fresh and avoid unpleasant odors, reducing the need for multiple water changes.

• Combines several water-care functions in one internal filter.
• UV treatment is designed to kill green algae.
• Deodorization helps maintain a fresh-feeling tank environment.

How does the S9F filter waste and fine particles?

The S9F uses low-suction filtration to draw fish manure and leftover food from the bottom of the tank. A sock filter adsorbs fine impurities in the water, and its filtering design helps prevent collected dirt from leaking out or flowing back into the water during cleaning. This combination addresses both settled waste and finer particles, rather than relying only on water circulation.

• Low-suction intake focuses on waste and food at the tank bottom.
• Sock filter media captures fine impurities.
• The sock-filter design helps limit backflow pollution during cleaning.

Which tanks and water environments can use this filter?

The S9F is suited to fish tanks from 75 to 200 gallons (284 to 757 L), as well as turtle tanks. It is intended for freshwater aquariums, saltwater tanks, turtle habitats, cold plunge pools and cold tubs that need filtration and water-quality maintenance. For tank fit, compare your aquarium’s capacity with the stated 75–200-gallon range; the listed flow rate is 500 GPH.

• Suitable for freshwater and saltwater aquariums.
• Also intended for turtle tanks and habitats.
• Can be used in cold plunge pools and cold tubs requiring filtration.

How do the UV system and outlet support water movement?

The filter has a 7W UV sterilizer with a 253.7 nm light band. The UV technology is intended to eliminate harmful bacteria and pathogens and to kill green algae. At the outlet, adjustable bubble size lets you set the bubble output, supporting oxygenation and wave-making as water circulates through the aquarium.

• 7W UV sterilizer for aquatic environments.
• 253.7 nm UV light band targets green algae.
• Adjustable bubble-size outlet supports oxygenation and waves.

The coospider-repta S9F is suited to aquarium and turtle-tank owners who want one internal unit for filtration, water movement and UV-based green-water control, as well as cold-plunge users whose pools or tubs require filtration. Its 500 GPH flow rate and stated 75–200-gallon tank range make it a fit for the specified aquarium capacities.