UR Pet Supplies PTY (LTD) trading as United Reptiles - Prehistoric World Today
Their natural-looking surfaces make them ideal for larger rock compositions in your aquascape. These stones harden the very water slightly, however, you can easily compensate for this effect with water changes.
With their rugged exterior they can easily be combined to make larger formations. The grey colour of Manten Stone evokes the image of rugged massive rock formations or mountains.