I have a wooden viv with no drainage. I run two nozzles for a minute and a half 8 am, 12 md, 4 pm, and 8pm. I also hand mist if Popeye can be seen as he likes to drink from the mister. I also run a dripper for a few hours a day. This suits us.
I read somewhere that chams drink dew in the morning off of leaves in nature. Because of this I always make sure the first watering of the day is the heaviest and timed for the same time as lights on.