ok at first i just had my one bulb on during the day and at night i turned off the light and i had a under tank heater, but the tanks temp was about 67 degrees which is alil cold...so i bough a inferred heat bulb and in about 8 mins the temp went from 83 to 98degrees and for night this is too high....so to my question how do i keep up at night but not to high?????..........thank you............chris
