smokydoodle said:

Thanks! I can take the light temp tomorrow. Leaf temps have been 79-80 degrees using an IR thermometer.

I did have my oscillating fan on a cycle 3 mins on, 1 min off per AC Infinity's warranty. I'm going change it to always on (in case there's fluctuations in leaf temp).

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Yep, I have mine running all the time and adjust speed and angle for non direct passive air movement keeping hot spots down and wind damage down. In my humble opinion, it's heat / wind issue and nothing to do with nutes, watering that's ruled out.

davil420 said:

Answered my own question.. Auto in coco.. ok, so 7x speed Photo which 3 days is almost a week Photo time and should notice changes by then, if not, it needs addressed again. I want to ask if you measure and going by manufacturer light lights to canopy method or use a ppdf meter / app for precise readings?
Is your Fan directly blowing at the canopy?
You can't be over water them
You have no toxicity on tips edges veins
Not Clawing up but cupping up
So really it's narrowed down to Wind burn / light / heat burn. Light Spectrum burn would show Yellowing on the Body of the leaf, so it's not Light strength beating on them, rules that out.
Wind ?
Temp radiant heaters off light?
Air temp?

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Thanks for the help!

I'm likely underfeeding them (as an overthinker reading about all the newbie overfeeding stories). I'm turning the Autopot on for the big one tomorrow. Hopefully letting her feed herself will take frequency and volume out of the equation for me.

Added a video of the fan. Because of the size difference, I'm having an issue getting both a 'light touch'.
Also, I do have a space heater in there to keep the temps up. Without it, temp drops to 75 degrees.

Leaf temps are 79-80 degrees. Tent temp is around 79 degrees. VPD has been between .55 - .70.

My light is an Atreum Hydra 3200 (24/0). I'm using a Uni-T light meter to measure what's hitting the canopy and solving for DLI using this chart.

smokydoodle said:

Thanks for the help!

I'm likely underfeeding them (as an overthinker reading about all the newbie overfeeding stories). I'm turning the Autopot on for the big one tomorrow. Hopefully letting her feed herself will take frequency and volume out of the equation for me.

Added a video of the fan. Because of the size difference, I'm having an issue getting both a 'light touch'.
Also, I do have a space heater in there to keep the temps up. Without it, temp drops to 75 degrees.

Leaf temps are 79-80 degrees. Tent temp is around 79 degrees. VPD has been between .55 - .70.

My light is an Atreum Hydra 3200 (24/0). I'm using a Uni-T light meter to measure what's hitting the canopy and solving for DLI using this chart.
View attachment 2374588
View attachment 2374599

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Ok, so, you can never over water in coco, yes you can Over Feed them for toxicity but this is why knowing PPM levels per Stage of the plants is Vital.
DLI is more for a High watt enclosed High c02 measurement and reading system, for folks like us, PPDF is much more accurate, safe and effective over DLI. Your DLI can be ( right according to charts ) but the Ppdf can be way off and that's what plants need. A solid ppdf per stage = a proper DLI overall.
If you have another oscillating fan, put 1 at the roof level pointing 45° down and lower other one, lowest speed blowing under the canopy upward 20°-30°
You will have better stability in tent mixing the hot ND cool air.

With growing pick Humidity to regulate environment according to temp without extra work. Such as a heater.. what I'm trying to say is that if the temp is 75° with 0 heat with light on, adjust humidity and control humidity with exhausting.
75°f @ 70% hmd is perfect veg conditions

75° f @ 60%hmd is perfect for flowering.

No need to worry about temps when your Humidity acts as a heater and ac by adjusting the % in the room
Try downloading Dr.greenhouse VPD calculator. Enter 70°f 75°f what ever temp and play with the Humidity levels from 55 - 80% and you will see what's perfect and stressed. Then match those # in tent. Way less risk of fire, electricity surges, drying the plant leaf / air with dry heat all fighting against you when it's not needed.. remember humidity is your Friend and as long as you use it in the limits safe for plants. It's a win win.