Here's what I came up with

This is not my first time on this forum, but it is my first post. I have gained much information from all of you over the past few months and made to good use many of your tips and techniques. However, this is my first post. I have a relatively small space where I am growing 25 plants; 9.5x9.5 with a small closet which I use for a/c, charcoal filter, ballasts etc. The strain is purple kush. They vegged for just over 8 weeks from clone n(18/6), using tap water adjusted to 6.3pH, and about 800-1000ppm using Advanced 2 part veg, did not use any other additives (also, did not top/supercrop/FIM). They vegged under 1-1000w MH until they were up cupped to 2 gal pots, then 2 lights until week 6 (7 gal), then 4 lights until week 8. After week 8 they were spread out under 8 air cooled 1000 HPS, They were flipped to bloom with 36 hours dark before 12/12 cycle. The temp is managed by fan a portable ac unit, and an thermostat controlled heater at night. Temperature hovers between 72-80 during the day (depending on outside temp), and about 60-65 at night when the lights are off. Humidity at its highest was 75 during veg, but now that outside values have dropped, it's usually between 35-45. In the first 3 weeks of bloom, I was using Advanced 2 part connoisseur, bud candy, kushy kush, bud blood, pH was around 1200ppm. I am now in the 4th week of bloom, and have stopped the bud blood, but switched from liquid kushy kush to powder big bud, and added overdrive. The pH is around 1350ppm. I have ALWAYS watered consistently; every two days when the dirt is dry, but the leaves have never sagged. They currently get about 1gal every two days, on a feed-feed-flush basis. I have sprayed for bugs only a couple times, had some thrips in late stage of veg and early flower, but they are all gone. Never had any issue with any mold either. The top canopy is very thick, so I had to take off a lot of the bottom schwag. Currently have about 12-15 secondary tops, plus the 25 big ones. So...needless to say, I am looking forward to harvest day Feedback? Questions? Suggestions? Anything would be greatly appreciated.

Sounds like a nice setup you have. If you have the extra cash adding co2 would definitely be beneficial. Got any pictures of the room?

Thanks man! I've thought about adding co2, but there's so much fresh air being pulled into the room, I thought it might be a waste. There's a 12x12 fresh air intake, and the ac pulls from inside the room (when the lights are on) exhausted outside, and the charcoal filter is exhausted outside 24/7. Maybe I could turn off the charcoal filter at night for a few hours and add co2 then? I guess anything would help... sorry, I'm new to this. Can't seem to add any pis to an album. Is there an easy way to do this?

Ph? you mean tds? Sorry you want see 1300 ph wel wait another decade, anything is possible.

I'm not sure what you mean. I said the water is at 6.3pH, and 1350ppm.

aaahhh, deeerrr. It's late, going to bed. I see my error. lol

I have kept the ph at a steady 6.3 since day one.

Knowledge is power my friend. I consider myself a novice indoor grower but do a lot of research. From what I understand the amount of CO2 present in the atmosphere (depending on where you live) is not nearly as high as if you were to supplement. If you do decide to use it you won't want to exhaust your room when you are adding CO2 or it will be a waste. CO2 supplementation at night not necessary as the plants only utilize the high amounts of CO2 during photosynthesis. They should also tolerate higher temperatures if you are using CO2. I would do some research before you decide but if you are running 8k watts it might be worth it to give them a little extra boost.Haha sorry but I'm new to posting on the forum too. I've had an account on here for a while but just recently started growing again. About the pictures if you click the reply button directly below the post you should be able to insert pictures in there. Look forward to seeing the setup!

I'll definitely look into applying it to the next round, going to need it throughout the summer if it helps them in higher temps. The ac needs to be on when the lights are on and it currently pulls air from inside the room. Once this round is cleared out I'll draw the air into the ac from a different location. Thanks for the suggestions!

So, I got home from work today, and nearly lost my shit! Walked up to the house and I could smell the humidity Opened the door to my room, and it was literally dripping with fucking water. The board that I have my inline fan for the lights and the ac unit decided to fail. It was 70% humidity and nearly 115 degrees. I quickly rearranged some shit to fix it, but I am affraid that I have caused irreparable damage to my crop. This is the worst possible scenario with only 2 weeks to go until harvest. Other than being robbed, of course.

could have been worse, you could have stepped on a lego with bare feet.

All I have went into this. Almost all the main tops have already foxtailed and the sugar leaf has all yellowed. I would have rather stepped on a lego, a million times.

hang in there, that cannabis is a resilient plant. you'll salvage something good.

and on the bright side, you didn't step on a lego.

Thanks man. I appreciate the your optimism, I'll sleep tonight after all.