Product Description :
Gravels are one of thepart of aquarium because they keep water fresh and healthy long and long time by absorbing all the wast they work as a biological filter because most of the healthy bacteria grow between them they work as a great part in decoration these provide a very healthy environment to plant and fishes shining glow white color stones (gravel form) are available, minimum 2. 5 inch layer of gravels for healthy aquarium.