Our colored gravel are used in many sensitive sectors such as: Pet Industry: to fund aquariums, terrariums, and so on. School: School activities, activities in museums. Gardening: Ponds, roads, designs, pots and other Decorations: Home, scenery, displays, etc. Aquarium floor The floor of the aquarium is usually fine gravel coating. A few inches are sufficient to permit the establishment of plants. SPECIAL PROPERTIES: – Chemical and water resistance. – Resistance to abrasion and mechanical stress. – Resistant to acids, alkalis, oils and gasoline. – Hardness and toughness. – Good adhesion. – Environmentally friendly.