LED Jellyfish Light – USB Powered Round Ambient Light with 3 Illuminated Jellyfish and Remote Control-Sphere-shaped LED lamp featuring three illuminated jellyfish, multiple light modes, remote control, and USB power source. Instructions for Use 1. Use a 5V plug. 2. Before use, fill the aquarium halfway with clean water, shake a few times, and then pour it out to clean any impurities. 3. Plug in the USB cable, fill the aquarium again with clean water, ensuring the water level is about 1 cm from the bottle opening, and add 3-6 drops of dish soap. 4. Flatten the jellyfish tentacles, place them in the water, and close the lid. Turn on the switch. Note: Upon first use, a large number of bubbles will adhere to the surface of the jellyfish, which may cause them to float poorly. After a while, the bubbles will disappear, and they will swim normally. Alternatively, you can manually remove the bubbles from the surface of the jellyfish.