Would 250w hps in a 80*80*160 be ok for 2 plants from seed to flower ??? Or should I go with the 400w hps ???
Thats a big area for just two plants, that being said you should be fine with the 400w without heat issues. i have a 4'x7'x8' split in half. I had 2 400w hps on flower side and just added a 400w to my vegg side. As long as you are exchanging the air in the tent with a carbon filter and/or passive or forced air intake, you hould be fine.
