Worldwide Atlantic 4 crush coral 20lb-2
Natural crushed coral gravel
Provides maximum surface area for biological nitrification
100% from the ocean floor. Natural crushed coral gravel. Maintains superior ph and marine chemical balance. Provides maximum surface area for biological nitrification. Scientifically graded for uniformity which provides maximum water flow and aeration. Prevents anaerobic dead spotsï¿½ in bacteria bed.
Worldwide Imports AWWA1035 Atlantic 4-Crush Coral 20-Pound - B000N33ZN8