Add some fun and function to your fish tank with this cute floating diver decoration! This little glowing scuba diver hangs from a clear floating ball, gently bobbing along with the water current. It actually helps you see the direction and strength of the flow in your tank, which is useful for setting up filters. The cool part? You can adjust how fast it moves by opening the floating ball and adding a little bit of water inside for more weight. It's made from a safe, luminous resin material that glows softly in the dark after being exposed to light – harmless to your fish. It's a simple, creative touch that works in both freshwater and saltwater tanks, large or small. To clean, just rinse it with water (no soap!). Watch your fish investigate their new glowing friend!