Seachem Fluorite Black Clay Gravel, 7.7 lb Go to amazon.com Related posts How to buy the best flourite black? Which is the best flourite substrate? flourite gravel buyer's guide FeaturePerformance Driven At Affordable PricesMade In The Use With Quality MaterialsField tested to ensure nothing but the best for your pet DescriptionFlourite Black Planted Aquarium Gravel 3.5kg/7.7lbs NEW SMALLER SIZE with RINSE IN BAG FEATURE