Description
Nature’s Ocean Aragonite Gravel#4 10LBS (Grain size: 1.7 -2.5mm). 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.
