Return of the hawk

This is 10 days after the first video in week one, 2 days since running the co2 and they started to take off in the 5x9. BTW the floraflex nute dosages are grams per gallon since its dry. ALSO notice the no calmag, have seen multiple growers using floraflex with zero calmag and ZERO ISSUES they have even told me personally that they seem to have healthier plants without the calmag which is wild to me (another reason to switch to floraflex). The 4x8 were just transplanted within the past 3 days, no co2 yet. Obviously isn't perfect I wish I had everything at the same exact stage but I had an issue with some of the clones and couldn't wait to start them over so I just transplanted some mothers I had hanging around in solo cups from a few runs ago. The small ones are the new clone strains cherry kush mints frosted apricots and Platinum Gushers. Might have some issues feeding everything evenly as the smaller ones won't be eating as much as soon as the rest. Maybe I'll stop the co2 in the 5x9 and only run in 4x8 to get everything to even out as much as possible before the flip. Next run I'll have to be more organized and prepared but I'm hopeful I can pull off some decent results on this one. The co2 in the tents is a little tricky, would like to hear how some other growers run theirs. Constant exhaust on lowest setting? Exhaust on a timer? No exhaust? Today I'm trying no exhaust at all and see what happens like a sealed room essentially but im thinking of having the exhaust on a timer to run every 2 hours for 15 mins just to refresh the air or every hour for about 5 mins. Got alot of cleanup left to do so don't mind the God damn mess mf.