SaySummer Submersible Fish Tank Filter for Aquarium: Solve Green Water 6 in 1 with Ammonia Reducer Media, Built-in 8W U - V with Timer 200GPH for 20-120 Gallon Tank

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• Important Note for Stable Water Quality: When installing or replacing filtration equipment, allow the system time to stabilize before introducing a full fish load. For routine maintenance, gently rinse filter media in old aquarium water rather than tap water to preserve the established filtration process. To prevent sudden changes in water quality, avoid replacing all filter media at the same time.
• Multi-Stage Filtration: Stage 1: Coarse bio-sponge filters out particles and debris. Stage 2: Fine bio-sponge provides additional filtration while offering space and habitat for beneficial microbes, which help to break down ammonia and nitrites from fish waste. Stage 3: Ammonia-reducing media further purifies the water, effectively neutralizing excess ammonia and ensuring a healthy water cycle.
• Clear Green Water in Just 3-7 Days - Equipped with a high-efficiency 8W U - V light and an external timer, this filter allows you to customize its operation with 4, 8, 12, or 24-hour daily settings, or turn off the U - V while keeping the filtration running. By combining physical filtration with U - V function, it clears green water in 3 to 7 days, restoring water clarity and promoting a better aquatic environment.
• Unique Ammonia-Reducing Media: The final filtration step includes a unique ammonia-reducing media, designed to help reduce excess ammonia. Its fine, porous structure increases contact surface area with the water, effectively promoting a healthier aquatic environment for both fish and plants.
• Quiet, Aesthetic, and Safe: Please note that this submersible aquarium filter is designed to operate fully submerged underwater. Running the unit above the water level may increase noise and potentially cause damage. When properly submerged, the internal aquarium filter operates quietly, ensuring no disturbance to living areas. The entire unit has undergone multiple safety tests, providing efficient filtration while ensuring safety and durability.
• Flexible Water Output Options: 1.Aerated Output: Mixes water with air via a connected tube, releasing oxygenated flow and creating aerating bubbles. 2.Spray Bar Output: Directs water through a perforated spray bar, increasing oxygenation and surface agitation. 3.Submerged Jet Outlet: Generates underwater circulation, improving water flow and boosting filtration efficiency.