don't remember retic temps off the top of my head, but I'm thinking a higher hot spot is needed, if s/he is eating still just focus on the husbandry, double then triple check it! I don't who you got him/her from, so you may have a bit of catch up to do. as long as s/he is eating/drinking normal, just do your best at home, but if s/he stop eating/drinking, looks thin, ect then its time to head to the vet! (though a parasite check is always a good idea on a new animal) Best of luck!
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hanging out under heat lights burns up my brain cells!!