I use 4 65w cfl's and one 100w CFL and I have a 2 bulb t8 fixture(4ft) and I am waiting on my 3x3 mylar tent in the mail. I am using an ona block for my smells( I have a few of them). Should I add an inline fan or a 150w HPS? the Carbon filter+fan and the light all cost about the same ($100)...