Nature's Ocean Hawaiian Rainbow Gravel for Aquarium, 10-Pound

Description

Nature's Ocean Hawaiian Rainbow#8 10LBS (Grain size:6.3-9.5mm ). 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.