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10 watt replacement UV tube
and if the alkalinity is lost
clean water
We also develop biomas to completely cover the bead media and make it sticky
but is best above 0
Mountain Tree Spiral Filter Mat Green 1.2 x 1m Liners and Pond Sealants 10 watt replacement UV tubeThe Mountain Tree Spiral Filter Mat has both physical and biochemical filtration capabilities with excellent water permeability. It provides a subarea for bacteria to achieve step by step biological filtration. Multi functional filter media Patented spiral 3D structure Moderate thickness and density Hot melting solid structure Easy to cut, maintain and install Patented Spiral 3D Structure More surface area is covered by spiral and coarse filaments,