Combination of Fiji and ordinary live rocks. - All live rocks are fully treated before introducing into the display tank. So is free of crabs and aiptasia. - 100% copper-free - Some are covered with coralline algae, some not (due to corals placement and some are in the sump with nominal light) - Porous and good shape to place corals - Quantity - enough for a 2'x2'x2' scape Selling price: S$10/kg nett for all types of live rocks. Estimated got 20-30kg.