Got my hypothetical tent, which has two duct openings in the top... http://www.amazon.com/gp/product/B004E684CW?keywor... Got my imaginary carbon filter/fan combo. 2630CFM, Inline 6. http://www.amazon.com/VenTech-VT-IF6-CF6-IF6CF620/... And I got this Cooltube that doesn't actually exist... http://www.amazon.com/Cooled-Cool-Tube-Reflector-L... So, the question is... Am I setting this up so that it runs from ducting on the outside to fan on the inside to more ducting to cool tube to ducting to filter on the outside? The filter has only one entrance/exit, so that has me a little confused. If I've got some bends in the ducting, for instance when I drop the pretend 400w lights down to get closer to the plants, is that going to mess things up?