Good luck on your first grow Herbsmoke -
you must be very, very excited!
a couple of questions to better understand your first grow:
1. What are you going to grow them in? Soil or Hydroponics?
2. Also, what are you planning on
ventilating/cooling that tent with. If you haven't yet purchased an inline fan, I would highly suggest going with something along the line of a 450-500 cfm inline fan.......There are a lot to chose from but in my opinion the bigger the better....That being said, just because you choose a larger fan doesn't mean you have to run it at full throttle all of the time...simply purchase a rheostat or a fan speed controller and your then able to adjust the fan speed to exactly the speed you need to match your lights heat output . . . . . . .
Keeping temperatures under control and ventilation flowing smoothly will eliminate a lot of other potentially stressful situations from ever occurring......
I would recommend having a small oscillating fan inside the tent, blowing gently across your seedlings making them sway in the breeze ever so gently when first sprouted and then increasing the breeze as they develop.
This will help strengthen their stems and get them ready to bare the fruits of a heavy harvest.
A small oscillating fan sitting on the floor of a tent and pointed up through the plants canopy and aimed directly at the HID lamp is a good way to help prevent hot spots and maintain an even temperature within the tent.....
Good luck and remember, the more pics the better!