hi all, I know this has been discussed before, and I have read through the archive, but I just have a quick question: My 2 ferrets are kept in a room with no windows, a frosted glass door (so they do know when the sun is up/down) and standard white fluro lights. If I get full spectrum bulbs, how long do I leave them on for every day? Do I simulate outside? So when the sun goes down, I turn the lights off; sun up, lights on? Please reply privately, as I know this has been discussed before. thanks in advance for any help/advice shona australia [Posted in FML issue 4181]