Overnight static test with just 6” exhaust booster to the end of my rooftop power vent pulling air through gave me average 6 degree below ambient temp in veg room 86 degree with 90 outside.
Think I will do just the two tall plants as the MP does not stretch and is very compact.
I Have some GG4 rooting that will check all the boxes to SCROG and yield for the MARK II.
Now to get a light built!!
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