NATURAL - 100% real slate gravel that has been sourced, sorted, washed and packaged in the USA by a family owned business. Each bag is a mix of gravel from 1/4 to 1/2 inch (some stones may be slightly above or below this range).
EXCELLENT as gravel for Aquascaping aquariums or use as a topper for soil in a planted tank. Pairs beautifully with our larger slate stone and gravel for a more realistic look in your tank. Absolutely no coatings on this or any of our stone. It is pH neutral and aquarium safe.
COLOR - This slate gravel is a beautiful, deep grey matte finish, with a hint of blue, that is darker when wet. Because this is a natural stone, slight color variations including some white quartz or brown stones may be mixed in.