As in how does it get to the tank? Heres my viv, the humidifier is underneath in the cabinet.



Theres a rubber hose, i think half inch, thats siliconed into the opening of the humidifier. That hose runs behind and into the bottom of the enclosure. Here you can see the hose coming through the back



And once I finished the layout, I cut the hose short, and cover it in ecoearth, so now you can even find it if youre looking for it.