First Grow - Blue Dream Fem in Hydro

So much water usage this week! They started the week consuming about 5 gallons per day between the 8 plants. By day 4, they were consuming 10 gallons per day. That consumption caused my exhaust fan to run constantly to keep the humidity down. It nearly drained my tank of CO2, so I shut it off and set it to maintain 77 degrees and 55% RH. I came to the conclusion that I can only use CO2 in veg since it would seem to require some intense dehumidifying in room after they reach flowering size, and I only have enough room to fit a 30 pint which runs constantly and does not keep the humidity down on its own. The big left side plants are growing like crazy, and I am running out of squares in the screen. I had to start some additional training on branches to even out the canopy. Other than that, no problems. So far, so good! Some people have commented on crowding and airflow. Thanks for the input, everyone! Just to add some details about my airflow, I have 4 of the 6" oscillating clip fans. Two above and two below the canopy. There is a dehumidifier running constantly in the middle of the tent that is constantly blasting out warm air. There is an 800 cfm fan/filter recirculating air inside the tent. The 350 cfm Cloudline Infinity S6 exhaust fan runs frequently with CO2 on and constantly with it off with two 6" passive intakes at the bottom of the tent. Additionally, I remove fan leaves when they are crowding. I will do a major defoliation in week 3 and probably raise the screen a few more inches next week since I have a lot of stretching left to do.