Biological Filter Media / Lava Rock Based
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Natural volcanic rock for biological filtration
EHEIM LAV consists of volcanic rock and is a natural product. Its rough, highly porous surface structure provides the purification bacteria with very good colonisation conditions. Because it is a natural product the granulate and small pieces in the packs are of different sizes.
EHEIM LAV can be washed and reused. It is suitable for fresh and marine water.
TIP: Great for aquascaping as well!