Well the way my room is positioned I only get a few hours of sunlight in there and its not much cause I have to keep the blinds closed or the sunlight will shine in the tank. So I was keeping a light on directed towards the tank from 9am-9pm then off during 9pm-9am and then back again. I'll grab a nightlight from the store so I can check on her at night without the stress of turning the light on and off.