Spice up your aquarium with Marina Betta Kit Gravel. This black gravel is the perfect addition to your Marina Betta Kit. Adding colorful gravel to your betta aquarium is an excellent way to enhance its look, as well as embellish it with a rich and appealing touch of visual flair. It is also a practical way to secure accessories such as ornaments. Made of safe and non-toxic epoxy, the gravel will not affect water chemistry or harm your betta. This aquarium gravel is perfect to pair with the Marina Betta fish tank decorations such as the Marina fake plants, fish tank lights, aquarium gravel, and other fish tank décor (all sold separately). For more fish tank accessories check out the other Marina products including aquarium filters, filter media, aquarium plants, aquarium heaters, aquarium air pumps, aquarium lights, aquarium rocks, aquarium thermometer, aquarium stands and other aquarium decorations. Marina has a wide variety of products that are perfect for your pet fish or betta fish to enjoy in any large fish tank, small fish tank or in a freshwater tank.