I've always turned on my UVB light when I leave for work, then the UVA light turns on about an hour later after I leave. Then at night, the UVA turns off, and a little while later I turn off the UVB. I figure it was sort of mimicking sunrise and sunset (slowly getting brighter and darker).
I've seen a few posts around about RES' eyes swelling because of the UVB bulb. Should I only have it on for a few hours a day instead of all day long?
Kate

