Media suited to non fluidised calcium reactors, 2-3mm. Media with a grain size of 2-3mm for use with non fluidised calcium reactors, the small grain media can also be used as an attractive calcium rich sand bed.. Rowalith W is mined from ancient coral beds and provides the correct levels of Magnesium for your hard corals.
Specification
Around 800gr of media equates to 1/2 litre in Volume.