Can I cut a hole in the duct for a room?

Here is my problem. I have room 1 which is 7X12. It only has a flouro and 400w inside a cab. Room 2 is 12X12 w/ 2 600w bulbs. I have fresh air through 6" duct coming from outside which passes room 1. Out the other side of the tube it is cool cause it is cold here. I used to leave the door open but now they are on different light schedules. Should I just cut a 2" hole for air to come into room one or attach the other end of the tube w/ duct and go through the wall? I also have a huge filter in the corner of the room and it is not working. Will I need to use fans and somehow send that air outside? Hopefully someone knows what I'm talking about....lol.

p.s. Thanks BlueBear for all the input. You always help me w/ all my stupid problems.

Is there a fan hooked to the end of the 6 inch line?

Ga Grown!

well for ya last question
yes a fan is required to move air where you want it to go

I know you need 1.I was asking him was there 1.Then I would follow-up on it.

Ga Grown!

I was answering his question

it was my last question,too. Sorry!

Ga Grown!