ADA Tourmaline BCTourmaline BC contains fine bamboo charcoal, absorbing organic pollutant substances and tourmaline. Add some over the substrate during the initial set up, and it will help to improve the substrate environment Tourmaline BC is a mineral compound of iron, aluminium, sodium, boron, lithium and magnesium which are gradually dissolved, enriching water of important elements. Tourmaline BC is an electrostatic mineral that increases roots plant nutrition. In