XINYOU GREEN SPONGE 40X30 XY1819

XINYOU XY-1819/1810 green Sponge

100% Brand new and high quality.
Suitable for Seawater, Fresh water.
Product Description
Features:
1. 100% Brand new and high quality.
2. This product is suitable for seawater, fresh water, water tanks, size can be cut freely.
3. Dense hole clearance and softness, and through expert analysis is the best to cultivate good hotbed of nitrifying bacteria.