Lessoned learned last time around with autos therefore I will not give them any feed for the first 3 weeks this time around and start gradually once they have matured.
@The_Projexx, See the above pics of my homemade setup lol. I'm running a 4'' inline for a 3x3x6 tent. Isn't that enough? I previously had another 4'' inline fan as an intake but modified that with a Honeywell 8 inch fan connected to a 4'' duct and seems to regulated the current temp at 75-78 with 2 x 450W Vispas on Veg
@GreenHouseLab, Just get bigger exhaust and bigger intake if your having trouble with the heat :)
thanks for taking the time to respond
-Happy Growing!