Natures Ocean Premium Atlantic Crushed Coral With Aragonite 20 Lbs

Premium Reef Substrates for Aquariums.

Benefits of Nature's Ocean® Reef Sustrates:

•100 % From The Ocean Floor
•Natural crushed coral sand
•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 Spots) in Bacteria bed.
•Completely chemical free
•Pre-washed (minimum rinse required)

Recommended:
Use at a rate of 10lbs per square foot of the tank floor's bottom area which yields about a 1" deep covering. Depending on your needs or preferences the depth may vary from 1/8" to 3"s of covering.

Grain size : 2 - 3.5 mm