Premium Atlantic Beaten Coral Sand with Aragonite#0 20LBS (3.five-5mm). Premium Atlantic Beaten corals for aquariums: Scientifically graded for uniformity which supplies most water float and aeration; Prevents anaerobic (Dead Spots) in Bacteria bed; utterly chemical free. For Best possible Results Use as Follows: Pre-washed (minimum rinse required).
one hundred% from the Ocean Floor
Natural Beaten coral gravel
Maintains superior pH and marine chemical balance
Ideal for culturing Reside sand