A mix of Small Shelf, Reef Saver, and Foundation Rock.
Pile up to create a home for small fish and inverts or use as frag chunks for the perfect natural looking surface to mount new frags too. They also work great in mushroom or anemone boxes.
These are porous but heavy enough to resist movement by wave action, unlike typical frag discs. Your frags will stay where you put them!
The go-to choice for professional aqua-culture facilities for many years, now readily available to the masses.
Sold by the case of 4. (36 pound box)
