Review on 🐠 Enhance Your Fish Tank with Bestgle Action Aquarium Ornament: Undersea Treasure Chest Diver and Live-Action Aerating Fish Tank Decorations by Jen Smith

You need to add something on the bottom to keep it from floating. My diver/chest had no instructions. Also, I couldn't open and close it until the clear packaging clip was removed from the back. Also, you need to adjust the airflow to the desired pressure. Too fast and it stays open instead of closed. My air pressure knob was turned slightly. It worked great. All my fish gathered in one place and watched him. Very funny. Super sweet. Love it.