The Amazonia Soils are the darkest,
they are recalling the dynamic changes of rainy and dry seasons,
the lush world of South-American rainforests.
Power Sand is base substrate material designed for providing nutrients to the roots of aquatic plants and promoting growth of substrate bacteria. Porous volcanic stones secure the water circulation, and organic nutrients promote the growths of bacteria. Please select right size, S, M, L according to the depth of aquarium tank.