From one of the world's top Aquascapers Oliver Knott brings you a trusted aquascaping soil which will give your new/existing planted aquarium a real boost. Available in both Black and Brown it is very clean with no need for pre washing. Ideal for use with shrimps and aquarium plants. Provides optimum growth for all you plants and is PH stable. It naturally lowers GH giving you the perfect environment that your livestock will prefer. Ideal for long term use without the need for replacement. 2-3mm pellets.