GloFish® fluorescent fish add an alluring array of brilliant colors to any aquarium. With a full range of vibrant aquarium kits, lighting and décor, consumers can create an underwater fluorescent wonderland. Transform any aquarium into a GloFish environment at the click of a switch. GloFish aquarium gravel and gravel accents are the perfect way to quickly convert any aquarium into an exquisite GloFish environment. This black gravel is designed to help create an underwater paradise and allow your fluorescent fish and décor to stand out beautifully under blue LED lights. Your friends and family will love watching your GloFish aquarium come alive under GloFish lighting. Rinse gravel before using. For the best GloFish viewing experience, try using a blue LED light, like GloFish LED lighting, to give a uniquely fluorescent look, particularly in low or nighttime lighting. Traditional white LED aquarium lights work well for daytime use