Well my container is NOT drained, but the roots are so far above the bottom of the tray that if there is water resting at the bottom, it should not hurt.
I know that they like to be cool, I was told by someone that you should just grow em like a darlingtonia except with less water.. that's mostly why I decided to get one since my darlingtonia seems to LOVE my grow shelf.
Av8tor1, I am forever in debt to you for recommending those bulbs. They are just AWESOME.. I have a P. 'Aphrodite' that is NEON pink because of them!