ahhh that must have been when I thought you were in a 3x3 Now many use calculators and follow different formulations which are great though doesn’t take into account for a tent in a room that faces South, carbon filter drop etc. So lets do the math…
CFM = air volume x air exchange per min (1.33 to 5 - avg is 3) Sooooooo
CFM = (3x3x6) x 2
CFM= 54 x 3
CFM = 162
CFM = (4x4x6) x 2
CFM = 96 x 2
CFM = 192
These are your MINIMUM CFM’s Now to account for other environmental conditions…
Add:
25% tent in a room that faces South
25% room seperation
25% for up to 2 curls in a short duct
5% per HID or 2.5% per LED
20% carbon filter
25% High humidity
25% High temps (90F+)
From what I remember, you have 1 curl in the duct (25%), carbon filter (20%) and what? 9 leds running now (22.5%)
3x3x6 (I thought)
CFM Need: (162 x 25%) + (162 x 20%) + (162 x 22.5%) + 162
CFM Need: 40.5 + 32.4 + 36.45 + 162
CFM Need: 271.35
4x4x6 (actual)
CFM Need: (192 x 25%) + (192 x 20%) + (192 x 22.5%) + 192
CFM Need: 48 + 38.4 + 20.7 + 192
CFM Need: 299.1
That fan is 440 CFM’s so should be plenty either way unless I am missing something which I probably am
See? that puzzles me as humidity tends to rise in the dark period
Like I told you before, forget about humidity for the time being…your air flow should be cooling the tent by pulling cooler air in (even if its only 5F cooler than inside the tent, its still cooler), circulate a bit to give the plants co2 in the air outside of the tent and mix under the lights then pulled out of the room through the carbon filter. Humidity does not have anything to do with this process
She probably is at her last week so I would just ride it out on her…not much if anything can be done being at the very end of bloom and all
Essential stress: nutrients out of whack, cool temps, pissed off roots etc…slows them waaaayyyyy down even to the point of stunting tough many toe that line to push them. When they are happy, they don’t miss a beat even when doing an awful thing like topping
Example A: 6 wk old Colorado Cookies in a 2qt pot…just hit bud set and had her 1st dose of a bloom drench
Example B: 4 wk old Colorado Cookies in a 2 qt pot…almost done stretching
Now I am kicking myself for not having more room to put them in a 3 gallon pot
Ok so your homework is:
Figure out how many CFM’s you need using my math above
Get the Zmeans off of the floor…these are you heat creators so either suspend them so they are closer to your carbon filter hung 36" above the plants (leave the qb at 18") or remove them completely for now.
Open your bottom vent 12"…the one on the opposite side of the carbon filter
Run a circulation fan in between the canopy and the lights 24/7 on low
Ignore humidity
Edited to add:
Cover the top of the Lucky 7’s pots in (anything) plastic until they pop above the surface
As soon as Cotleydon’s show, get them 18" below the qb
Set extraction fan to Med/Hi
Ignore temp readings for 24 hrs while the tent stabilizes