General description This AlwaysH Aquarium Decoration Treasure Hunter is a creative and engaging ornament designed for fish tanks and aquariums. Made from durable and safe resin and plastic, it ensures the safety of your fish while enhancing the aesthetic appeal of your aquatic environment. This ornament is suitable for both freshwater and saltwater aquariums, making it a versatile choice for any aquarium enthusiast. Technical specifications Material: Durable resin and plastic Compatibility: Suitable for freshwater and saltwater aquariums Installation Requires an air pump, 3/16" tube, and air valve to control airflow to the diver's chest Adjustable opening frequency of the treasure chest lid based on air flow Usage Enhances the visual appeal of your aquarium Creates a lively atmosphere as the diver floats and the treasure chest opens and closes