Promoting the circulation of water, creating continuous water tower
Color automatically changes and is most effective when viewed in a dark room
It fits most aquariums, fish tanks, pools, and other similar occasions
Package: Round stone disk with build-in multi-color LED lights, 3/16 in a tube, and power adapter. Pump is not included, recommended to use with a 1.5W air pump and place the air pump higher than the water level of the fish tank
