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The Rowalith W is extracted from coral deposits and provides the right levels of Magnesium for your hard corals.
The large grain size of 9-15mm ensures greater friction with the water and even greater release of calcium, maintaining balanced hardness in the water.
Rinse very well to remove dust before use.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.