So I've been using two 15 watt flourescent tubes (825 lumens each) to light my terrarium for the past few weeks, They've been working great so far, but I decided that I needed more light yesterday so I bought two 19 watt compact flourescents (equivalent to 75 watts each-1100 lumens each). I tried using all the lights at the same time, tubes and new bulbs, and the heat in my terrarium was just too much, even with my fan blowing over it. So what should I do? Ditch the tubes and just use my two new CFs? Or keep the tubes and maybe just use one of the CFs or something. Help!