Premium Reef Substrates for Aquariums.
Benefits of Nature's Ocean® Reef Substrates:
•Ideal for reef system tank bottoms
•Denitrifying anaerobic beds
•Extremely high surface area filter media
•Increases Carbonate Hardness
•100 % From The Ocean Floor
•Provide Marine Trace Elements
•Ideal for culturing Live sand
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 : 1.7 - 2.5 mm