Nature's Ocean Coral Base Rocks 40LBS (Packaged: 2 per case 12 Inch - 17 Inch)Nature's Ocean Base Rock is 100% premium all natural aragonite rock covered with naturally formed holes and crevices which makes for some very interesting and unique shapes and is easy to stack when creating a base for growing live coral or as an addition to existing coral-based ecosystems. This porous characteristic provides a natural biological filter as well as a perfect environment for denitrifying marine bacteria to grow and flourish, which effectively reduces nitrates in your tank.
Aquarium Decorations used for Conserving Natural Reefs
Perfect for Coral Farming, Culturing Live Rocks & Growing Live Coral
Rapidly adapts to live environment & Will not affect the cycling of your tank
Naturally porous Biological Filter, Free of Biofilm & Perfect for aquascaping