1pcs Filter Ceramic Rings

This item is well made of premium material for durable and practical use. It effectively
helps remove harmful ammonia and nitrite in the water.
The tiny pores make it an home for beneficial bacteria to grow.
Feature
- Color: As shown.
- Material: Quartz.
- Size: Approx. 18 x 18 x 5 cm / 7.1 x 7.1 x 2.0 inch (L x W x H).
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Long lasting, highly porous ceramic material removes ammonia and nitrites.
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Good to use in both fresh and saltwater tank.
- The surface area and tiny pores make it an home for the cycle bacteria that you want in the filter.