OK, pH is 6.7 CO2 1000 ppm. Unplugged the exhaust fan to ramp up the ppm's a bit. Will probably set it to a timer. As of now the CO2 goes on for 2hrs at first light, then at 15min intervals until dark. Seems kinda like a double edged sword here; I need the exhaust but it's depleting the CO2. Setting the fan to a timer might help the CO2 levels but it won't help with odors or heat buildup (not really a problem with the LED) the room stays at about 70 w/fan on maybe 75-80 w/out the fan. Any suggestions?

Also, they're in rockwool & LECA. Seedlings are 5days old and are rooting nicely in their super bubbly/aerated environment. I will likely ScroG them.

Pics: 1. room now with 4cfls, The rest: notice the roots that was before any nutes.

I welcome any advice from you seasoned indoor growers. Especially on the subject of LED lighting. I'm sure I'll have plenty of questions along the way.

Also be sure to check out my outdoor Purps/BlueCityDiesel log!