The GreenJoy Aquarium Decorations Fish Tank Decor Christmas Theme Set Fish Cave Castle Plastic Plants Anemones Artificial Aquatic Plants Halloween Small is a great way to add some style and fun to your aquarium. This set includes 13 different items that can be used to create a variety of designs. The fish tank decorations are made from high-quality plastic materials that are safe for use in an aquarium. They are also easy to clean and maintain, so you don’t have to worry about them becoming a health hazard.