Ok...here's a quickie lesson: Always get the tub setup BEFORE you have to put a snake in it. The reason being...because it can take several days to tweak everything just so.

Just take some masking tape and cover up some of the extra holes on the ends. (From the OUTside, of course...no tape inside the tub!) Each time you make a change to the tub's setup, whether it is adding holes, adjusting the t-stat, moving the water dish...or whatever...you need to give it at least a full day to run with the new change...because it can take awhile for the temps and humidity to shake out to their true levels after the tub has been messed with.

So...just take it one step at a time, and be patient.