Help with ventilation please!!!!!!!

This is my first grow I have a total of 22 plants right now 9 KAT clones, 4 White Rhino clones, 4 BCN Diesel clones, 4 bubblicious clones and 1 Space Cadet clone. I am currently using 3 gallon pots with ocean forest dirt and 2 T5HO 8 bulb lights and only a box fan for ventilation. I have a 4x8x6.5 ft grow tent and a 1000w ballast, Hood and Hortilux bulb on the way. The space I am vegging in currently is 4.5x8 lined with black and white poly and I plan to make this my Bloom room with the 1000w ... Both the tent and the Bloom space is in the same room I am hoping to get some help with designing a intake and exit ventilation system. Please comment if you have experience with these strains and know some tricks or just how good they are also...All but the KAT was just received yesterday and are kind of sickly looking I am in hopes to nurse them back to health.

Hi, It usually takes a couple days to get them to perk up. In my neck of the woods its winter, maybe want to keep them warm till they settle in. You gonna flower all of them in a 4x8 area you dont wanna veg long. I would be lookin at a scrog type grow if I was you.

get a fan that blows the air in between your plants and light

Sorry, I didn't comment on ventilation, My favorite way is to make a window box.
Here, I cut this out of one of my journals:


















OK, got the box done, Now from outside it is stealth, just need to cut the holes.

Thanks for all the help guys! cruzer101 i think I am going to build that window box tomorrow thanks again..

No problem man, You know, you can use this for both intake and exhaust. Just mount the intake at the bottom and exhaust at the top.