This porous clay gravel substrate is idea for the naturally planted aquarium. It will not alter the pH of aquarium water.
Your aquarium plants will grow and thrive when planted in Flourite Plant Substrate. It is most effective when used as the primary substrate in planted aquariums, but you can also mix it with gravel or other substrate. It is made of stable porous clay that is not chemically treated or coated and will not alter the pH of the aquarium water.