Rusting leafs?

[Rocket Soul]

I think you're spot on regarding temperature. I had a secondary heater that I turned off trying to get the temperature lower than 70. I also started leaving the door open during light hours so definitely the canopy temp has been a lot higher than pot temp. I moved the heater to blow under the platform (on the back of the platform there's an opening for air circulation).

It was growing fine at 80° but then I turned off the heater and open the door and that's when the pot probably got cold and the canopy stayed hot.

They are vegging. The one in the front left in the 5 gallon bucket is the problem child. I'll get a picture of the 4 girls in the back later in the 25 gallon pot and see if there are "stretching out their leaves properly".

" You can extract from the botto. Instead of the top." Do you mean I can get an exact?View attachment 5439043 temperature from the bottom instead of the top?

I'll study the rest of what you wrote. Thx

If you extra t the bottom youll extract more cold air than hot. Id raise the lights a bit aswell cause thats defo a factor in this. Keep temps up and light levels a bit lower til you see an improvement in plant posture, their supposed to stretch their leafs out when theyre happy. Start from there, and then adress whatever nutes issues you may have, looking at the new growth to see if things are working out. Yellowish leaves are unlikely to go back to dark green at this point but just get another layer of nice healthy leaves and you should be fine. With leds and vegging nr 1 issue is looking at health and not how fast ot grows. If its healthy you can maybe up the light levels but you need to always keep the leaves looking happy and erect, or you will have problems. Can you close that space for higher temps and rh? Then do so. best of luck grower
And remember the incandescent trick, ot seems to work real well though ive never had to use it

 

[stawawager]

If you extra t the bottom youll extract more cold air than hot. Id raise the lights a bit aswell cause thats defo a factor in this. Keep temps up and light levels a bit lower til you see an improvement in plant posture, their supposed to stretch their leafs out when theyre happy. Start from there, and then adress whatever nutes issues you may have, looking at the new growth to see if things are working out. Yellowish leaves are unlikely to go back to dark green at this point but just get another layer of nice healthy leaves and you should be fine. With leds and vegging nr 1 issue is looking at health and not how fast ot grows. If its healthy you can maybe up the light levels but you need to always keep the leaves looking happy and erect, or you will have problems. Can you close that space for higher temps and rh? Then do so. best of luck grower
And remember the incandescent trick, ot seems to work real well though ive never had to use it

I have it at 81 at 50% RH, door closed.

What's the incandescent trick, adding a little bit of heat?

Someday I'll be a grower pro.

 

[Rocket Soul]

I have it at 81 at 50% RH, door closed.

What's the incandescent trick, adding a little bit of heat?

Someday I'll be a grower pro.

Not just heat, radiant heat. What does the leaves look like with 81F 50rh? Stretch out?

 

[stawawager]

Not just heat, radiant heat. What does the leaves look like with 81F 50rh? Stretch out?

I'll know later, I'll give it a couple hours after the lights turn on.

...Definitely have perked up especially the healthy girls.

I can see definite improvement in the sickly one too - no color change in but definitely happier. Thx, who knew -10 degrees would throw them a curve.

The sickly one was closer to the open door