@Wrh this is a 1.7 x 0.5 x 1.8 m Tent. It's 4 of them but they are sharing space with 6 vegging exodus cheese. So they are using about 1.3m x 0.5 so about 0.65 sq m grow space. I wouldn't call it a problem..more likely..lazines haha. Until few days ago I was using my 5'' fan as intake on my flowering tent. But now I no longer need it there i'd hook it up in that tent finally.
I've got 3 in a. 750x750 x1. 6 and I'm having to use a 6 inch rvk as the humidity goes thru the roof with the lights on plants look great thou. I suppose it's free weed if you're using the veg tent anyway good idea