Im thinking of makeing a couple of the humidifiers that u show on the diy page one for my 2x1x1 viv with my just over 1ft bp in and 1 maybe 2 for the 4x2x2 viv that the just under 3ft bp is in, do u think i would need two in the bigger viv ? what i really want to know is if the pump u need is a air pump or a water pump as it dosent say. oh both the vivs are made out of melamite with glass slideing frount doors and the big one as 4 airvents in the back and the lil one as 2, thanks in advance