Description
Nature’s Ocean Taiwan Coral Gravel #5 20LBS (Grain size: 6.0 -8.0mm). Premium Aragonite Reef Substrate for aquariums reduces Nitrates & Maintains pH. Ideal for reef system tank bottoms, denitrifying anaerobic beds, extremely high surface area filter media. For Best Results Use as Follows: Pre-washed Minimum Rinse Required.
