To use this Fish Gear aquarium gravel, first, rinse it thoroughly with cold water. Keep rinsing until the water runs clear and there's no debris or color left. Never use soap or detergent. When you're filling your tank with water, put a saucer on the gravel and pour the water onto the saucer. This way, the water won't mess up your new gravel. Once your aquarium is up and running, use a gravel vacuum for regular cleaning. Be careful when choosing gravel for your fish. Some fish might not do well with gravel and are better off with sand or a bare - bottom aquarium. Also, gravel can be a choking hazard for some fish. Keep in mind that due to lighting and other factors, the actual color of the gravel might be slightly different from the image.