At an unprecedented 50% void space (macro and micro), you will be hard pressed to find a durable natural rock that has this magnitude of porosity
Natural weathering processes form the fantastic shapes of South Seas Base Rock by the erosion and pitting of limestone over the course of eons
T is clean and safe for marine, reef and hard water freshwater aquariums such as African cichlids
Assorted
Real aragonitic base rock with live spored bacteria, shipped dry. At an unprecedented 50% void space (macro and micro), you will be hard pressed to find a durable natural rock that has this magnitude of porosity. Brand: CaribSea Aquatics, Model: 25376, Size: 20 lb
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