If your husbandry is off then definitley wait before switching. Where I live F/T is the ONLY option. So when we get snakes flown in that require a switch we do it. There cannot be a never for us. If the snake won't switch it will die. So far we haven't had a snake that won't switch. We have even gotten our babies to start live on F/T....not an easy feat!! But no switch should happen if your temps are off. If the guy who sells thermostats is unavailable Amazon will have something and be here in 2 days with Prime.

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