I just ordered a Reptisun T8 and a fixture that it will fit in. I plan on mounting it inside the viv, but I noticed the fixture has a cover over the bulb when placed in the fixture. Should I remove this? Or will it not be a problem since it is mounted inside the viv. I know the T8 doesn't have the best range to begin with, so I want to make sure I don't hinder it anymore than it already is.