Aquarium mixed gravel and sand substrate coloured an inter-galactic black colour. Manufactured in the UK from a top quality natural river deposit which has been triple washed and carefully kiln dried before it is black colour coated using an aquarium safe, non-toxic and durable polyurethane resin.
This together with smooth rounded particle shape and inert neutral balance in water makes this sand ideal both for the hobbyist and providing any aquarium decor with a wow factor.