I was reading a post from a yesterday from zoogirl that had some ideas about regulation of temps. with kings. This is a bit long but it's something to discuss.
My opinion, of course, is for those of us who live in an area where our snakes live or an area with very similar temps./humidity/light cycle, etc as their native habibat.
I go with ambient heat that mimics the snakes natural rhythms as much as possible and I'll use an example why; again, I live in south-central Mississippi so all of my king ssp./intergrades except for my brooksi share a similar climate in the wild.
I use to use heat for all my snakes, even when I lived in south Florida...big mistake and I don't use artificial heat now unless I need it for an ill snake or to spike the temps. in case it gets too cold. I lost one Eastern when living in West Palm, had one that took 3 months to heal, and another that was on the brink of death for 2 weeks; and I didn't own them all at the same time nor did they share cages - but what they did share was a respiratory infection. In fact, all of my 12 snakes (floridana, "goini", getula getula and a midwestern bull snake) had to be monitored ALL the time and were cleary not comfortable in south Florida - unless you have bokoo dollars you're not going to outdo nature.
It's no surprise that the two snakes I had that not only did well, but just thrived in that area in captivity (West Palm) were my two brooksi - both caught and raised nearby!
So, here in Jackson, MS I let the temp. in my snake room rise and drop naturally to around 82 or so during the day to 70 or so at night and let my kings adjust like they would in the wild. I just make sure they have fresh, cool water and hide boxes and let the snake do the rest. Of course sometimes you have to add heat or cool a room off by blasting the AC - it's still not nature in your house - but most of the time once you get it set up right it works.
So I go with what jones said in that post...if you can mimic the snakes natural temp. flucuation in the wild more or less that's the best route to go take. After taking all my snakes off heat for almost a year now I've had no problems with respiritory infections or other too much/not enough heat health problems. And my snakes are still active and digest their food normally; they've all adjusted to a natural light cycle too which makes caring for them more predictable.
JMO,
-John



when i get up in the morning most of my tanks have dropped to 70 even with the UTHs on.