GloFish Castle Aquarium Ornament is sure to bring some royal fun to your aquarium. Not only is this a fun addition to your aquarium but watch it magically change colors under LED lights. Give your fish the royal treatment with this fun bright castle that doubles as a great hiding palce. Colors Pop Under LED Lighting Brighten up your Fishes World With This Colorful Castle Great Addition to Any Aquaium Create a Fun New World for your Fish to Explore Provides Ample Hiding Spots for your Fish