GloFish aquarium kits, lighting and d??cor create an underwater fluorescent wonderland that appeals to all ages and levels of expertise. With our full range of vibrant accessories uniquely designed to work with GloFish LED lighting, you can transform any aquarium into a GloFish environment at the click of a switch. The GloFish?? Large Caste Ornament lets you add personality to any tank. Enhance any aquarium with this GloFish Castle Ornament as you create an environment that is perfect for your space. Each GloFish Ornament provides an ideal hiding place for your GloFish???helping to reduce stress. These ornaments feature swim holes perfectly sized for your GloFish to swim through as well as a silvery finish that reflects GloFish LED lights; making it the perfect addition to any GloFish tank! Watch as the Castle ornament fluoresces under the GloFish blue LED lighting. The large size is great for bigger tanks with more fish.