My current grow area is 43"x22" and my light is a AgroBrite 2' 4 bulb t5ho. The issue I have now is 2' doesn't cut it anymore with how quickly everything is reproducing. I wanted to upgrade to a 4' but I wanted people's opinions on a 4 bulb or a 6 bulb, with the 6 bulb it totals at 324w and I would have 3 6400k bulbs and 3 3500k bulbs. As for the 4 bulb it's rated at 216w and I would be using 2 6400k bulbs and 2 3500k bulbs. I'm really wanting to bring out the red in all my Droseras and Pings but I don't wanna cook the Pings which is where I'm at a hold.
My other question is about light pollution (if that's even the right name for it) but with everything on a shelf when the lights are off the plant are still exposed to the room lighting (a lamp and two computer monitors) nothing direct but I was curious to know if this would have a long term affect on the plants?