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RowaLith W 9-15mm
Media suited to non fluidised calcium reactors, 9-15mm
Large media of 9-15mm grain size ideal for larger calcium reactors, due to the large grain size it will resist tracking of water through the media often experienced when running small grain sizes in larger non fluidised reactors.
Rowalith W is mined from ancient coral beds and provides the correct levels of Magnesium for your hard corals.