Aqua Gravel is natural river gravels that don't raise the hardness of the aquarium water. You can spread it directly inside the aquarium tank and use as base sand. (Usable for bottom filter)
La Plata Sand is natural sand having natural bright color. It is suitable for general aquarium use and also good as cosmetic sand for planted aquarium. With its natural white color, La Plata Sand creates an atmosphere of natural river bed in aquarium. It
Colorado Sand is natural sand in natural reddish color. It is suitable for general aquarium use and also good as cosmetic sand for planted aquarium. It has a wide array of uses without affecting water quality. It is great to place a thin layer of Colorado