Aquarium sponge filter, fish tank filter, biological filter, increases oxygen, clears water, shrimp tank, silent fish tank

Aquarium sponge filters effectively filter waste and increase oxygen in the water. Suitable for fish tanks, shrimp tanks, and breeding tanks. Easy to use with an air pump. Simple structure, easy to maintain, and operates quietly. Ideal for continuous daily use.

🔥 2-in-1 Filtration System High-density sponge captures food debris, fish waste, and impurities in the water, while also providing a surface for beneficial bacteria to colonize, helping to clarify the water and reduce cloudiness.

✅ Increases Oxygen in Water When connected to an air pump, water circulation improves, increasing oxygen in the tank. Fish and shrimp move comfortably. Suitable for tanks that require a gentle, non-aggressive water flow.

✅ Quiet Operation This filter does not have a built-in motor, so it operates quietly. It can be used comfortably in bedrooms, offices, or home aquariums, without disturbing people or aquatic life.

✅ Compatible with All Pumps The universal 4mm inlet tube is convenient to use with mainstream air pumps. Easy to install, even for beginners.

✅ Durable Material The dense sponge is flexible and does not easily degrade with normal use. The sturdy structure ensures long-lasting use and is easy to disassemble and clean.

💡 Gentle Water Flow, Safe for Small Aquatic Animals Ideal for fry, dwarf shrimp, snails, and fish that do not prefer strong currents, reducing the chance of them being sucked into typical filtration devices.

Suitable Applications

• Used in breeding tanks for a gentle water flow that doesn't disturb fry.
• Used in shrimp tanks to filter food debris and maintain water quality.
• Used in hospital tanks or isolation tanks to improve water circulation.
• Used as a supplementary filter in main tanks to enhance filtration efficiency.

Installation Method Connect the air pump hose to the filter's tube. Then, gently press the sponge to release air, and place it in a corner of the tank. Once water starts flowing through, the filter will begin to work immediately.

Maintenance When the sponge starts to show brown stains, remove it and rinse it with water from the original fish tank. It is not recommended to rinse it directly with tap water, as this may affect the microorganisms attached to the sponge. Clean every 1-2 weeks depending on the number of fish and feeding frequency.

Usage Tips During the initial use, the biological filtration system may take 2-3 days to adjust, after which the water will gradually become clearer. Position the filter away from heaters to avoid localized heat buildup.

Product Highlights Excellent waste filtration, increased water aeration, quiet operation, easy to use, energy-efficient, and suitable for various home tanks, whether small fish tanks, shrimp tanks, or nursery tanks.

Product Dimensions

• Model 16*6.5*8cm
• Package size 7*8*16 cm
• Weight 0.168 kg
• Model 16.5*6.5*12cm
• Package size 7*12*17 cm
• Weight 0.263 kg
• Model 21*11*12cm
• Package size 11*12*21 cm
• Weight 0.287 kg
• Universal water inlet tube 4 mm

Note The actual product color may vary slightly from the images due to lighting and screen settings, and dimensions may have slight discrepancies due to manual measurement, which is normal for products in each batch.