This Hybrid MarcoRock seems to do it all. It lends itself to be quite easy and forgiving to work with. The shelving aspect allows for ample ridges and overhangs, which truly is the look of great aqua-scapes. The Reef Saver component of it offers mass, height and robustness typical of classic live rock. We recommend using this rock above MR Foundation rock. To connect Hybrid rock structures for more dramatic caves and ledges consider adding a few pieces of MR Shelf rock to the mix. Can be bonded with E Marco-400 for permanent placement.
All natural calcium carbonate rock. Never any chemicals, additives. Often, you can spot fossilized ancient corals in the rocks.