Tent Info

Hello all, this is my first time growing indoors so please bear with me. As of right now I have 7 sproutlings under 200w of cfl's in a closet. In about a week I'll be purchasing a Homebox Small and a 400w digital ballast with cooltube. I will also need to be purchasing a fan to exhaust air from the tent, and was wondering if a 250cfm would be enough to keep the tent cool. I am also aware that I will need to get a carbon filter eventually. Would having a carbon filter that has a 420 max cfm work with a 250cfm fan?

Thank you in advance for your help
b.dzzle

I would think a 250cfm fan would do the trick. If you are worried about it buy the next biggest fan and use a fan speed controller. Actually buy a fan speed controller anyway because it's nice to be able to control the output of your fan. A larger carbon filter will work with a smaller fan (actually better that way imo).