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
Safe for all marine and high ph freshwater systems
Calcium Carbonate rock supports health ph
Made in the USA

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 13.2 inch
Height : 10.7 inch
Length : 16.6 inch

Item Weight: 1 pounds (View shipping rates and policies)
Shipping Weight: 40.5 pounds (View shipping rates and policies)

ASIN : B0017JBX7M