Why does particles of black beach sand get attracted to the magnet in the scrapper?
Black Beach Sand is a 100% all natural product that is composed of minerals that erode and collect near beaches. One of black sands (mineral sands) major mineral components is called magnetite. Magnetite is a non-water soluble mineral that is attracted to magnet scrappers. This mineral is totally inert in an aquarium environment and has a dark coloration giving black beach sand its natural appearance.