Quote Originally Posted by bigsby
A second fan? Dude, how big is that tent? You are in danger of sucking the plants out of there with the size of the fan you are starting with! I doubt you will need another one. Check the links in my signature for a fan sizing tutorial.
the tent is 4x4x6.5. since i'm only doing 3 plants a time i wanted a smaller tent but it was all they had. if i just need the one fan than thats awsome! less i gotta spend

how exactly do you set up the carbon filter? does it hang at the top inside the tent and connect from the left 6" hole of the tent to ducting which connects to the air hood then more ducting and to the right side where the fan will be? so basically everything going straight across then just a flap open at the bottem for air intake?