http://www.theaquariumsolution.com/us-products-brand/rowa The taxonomy view with a depth of 0. xx http://www.theaquariumsolution.com/rowalith-w-2-3mm <p>Media with a&nbsp;grain size of 2-3mm for use with non fluidised&nbsp;calcium reactors, the small grain media can also be used as an attractive calcium rich sand bed .</p> <p>Rowalith W is mined from ancient coral beds and provides the correct levels of Magnesium for your hard corals.</p> Rowa RowaLith Tue, 15 Jun 2010 15:16:03 +0100 stuart 1304 at http://www.theaquariumsolution.com