Reef Saver is a sustainable product since it is not taken directly from the ocean and does not impact living coral reef structures in any form. Combined with their chemical-free cleaning process MarcoRocks is always 100% free of nuisance algae or any type of pests.
The suggested amount to setup a new tank is approximately 1 pound of rock per gallon of the display tank for an average aquascape. We recommend purchasing a little more than you may need since any extra can be used in the sump for added filtration.