- The fish tank humidifier can be applied to most evaporators, ultrasonic humidifiers, cold mist humidifiers, fish tanks and humidifier core filters. Just put it in the slot and start working.2. The filter can prolong the service life of the humidifier, keep the water quality clean, and improve the water quality of the humidifier.3. The humidifier cleaning fish has a fish-shaped design, which can be used as a decoration for the fish tank or to purify the air in the fish tank.4. Just drop this cute cleaning fish into the humidifier water tank. It will float in the fish tank humidifier. They stay clean for 30 days, provide continuous protection, prevent sticky dirt in the humidifier, and make it as clean as new.Colour:yellowMaterial:plasticPackage Contents:10 * Fish Tank Humidifier CleanersOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The