Suitable for pool, pond, fish tanks, rockery landscape, reptiles incubator and more occasion No any, heat, Just enough water, then it will bring you an excellent mist effect Colorless, andodorless The depth of water must be beyond8cm Therefore, it can work effectively and properly When is equiped with a LED powergenerator, the light will with the coming out mist, adding cozyand romantics atmosphere for your fish tanks, rockery landscape, ( power adapter not included Just put this floating mist machine in the pond or fish tanks, and plugs in the usb adapter, turn on thepower Then here comes this floating mist atmosphere