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RS Electrical Aquarium Biological Sponge Filter Cotton
- Special interlayers structure.
- The sponge provides a large surface for nutrifying bacteria living, purify water, make fish less sickness, and death.
- Filter mat comes with the latest technology, advanced environmentally friendly materials, durable and easy to clean.
- Suitable for seawater, freshwater and water tank
- 30cm*12cm*2pcs
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