right now i have one 55 cfm computer fan at the top taking hot air out... and one at the bottome bringing cool air in bottom... but the temps in the grow box still hit 86 degrees... do you think moving both fans to the top would help and make another hole at the bottom for passive intake would help.

i think the space i have now with the reflector in there... it would be hard to fit a vortex in line fan in there.

hi

need bigger fans
can u have the fan out side ! (inline fan)

Those PC fans are going to do bugger all in a space like that - as bart says, look into getting a proper inline fan, and maybe mounting it outside the growspace.

What light is that? Dunno if its just me but looks kinda big for that space.

I think it wouldnt be too complicated to mount an inline fan outside the box with some ducting going inside the box.