got 1 undr 400w of hps right now that looks exactly like that. went to 12/12 4 days ago so hoping NOT to see any "ballsacks". New to this but now i'm hooked. Was wondering....got a 4x4 flower room for "nighttime" my question is when you're vegging at 24 hrs light is it necessary for the plants to be in a light-tight room(the 4x4) inside a light-tight grow room (bedroom). Or can i just hang the mh over the plants in the bedrooom without building another 4x4. Using panda film to line the 4x4 did the same for veg period (4x4) but is it necessary if i'm at 24 hrs light /