Ok so i got my tank set up. cool side sits just above 80, hot side around 90. the humidity varies from 40-60. if the one light is not right above the water dish the humidity goes down to 40. if the light is right above the dish it goes to 60. i have read and some places say it needs to be between 50-70. and others say 40-60. so which one is it? is 40 an ok humidity? I get Morty this evening so want to make sure everything is set up perfectly