Ventilation Question

Im going to be making a pyrex bake around cool tube for two 400 watt hid lights.. I have 3 questions about this:

1. Can I have the two cool tubes connected with duct in the middle and then vent with the two outside ducts

2. If i can do that should i have both fans blowing one way or have them both sucking out?

3. What would be the best approach for this

Two outside ducts? Are you referring to the open ends of the connected cool tubes?

Show us a picture of what your trying to do, or at least try to explain it better....

all you need is a "Y" connector.

yes exactly u need -Y- connector and connect every one unit too this

yea i was reffering to the outside of the tubes.... and thats good news... does the fan need to be more powerfull since it is exausting two lights?