I will NOT allow my fun post turn into a multiple-housed-snake thread war.
I have owned, kept, bred and raised for 5 years now. Lessons learned hard, and as any other experienced keeper in here I advocate single-housing. PM me if you have issues.
As for the warm cold thing. In that picture my red lights happened to be on cause my timers were all miffed. Normally the white lamps are on during the day and the red's are on at night. As you can see I like to keep the water on the "cooler" side and at least one "warm" hide and at least one "cool" hide. In the left tank there is a branch for elevation and I've found that one of the Miami's actually crawls up there each night to keep nice and close to that warm red bulb.
Excellente