upside down canoe, what is wrong?

[JbBurnin]

The one beside it has been fed and watered exactly same, no cupping.


Been fed grow big 1/2 strength per gal. Dr. Earth bat guano 1 tbsp per gal. Ro water
Runoff is 6.3-6.6

It's in jiffy seed starter, then transplanted to 1gal bag with promix ultimate organic.
Temps 75-82
Humidity 35-49%

I have exhaust fan, and oscillating fan.


Any suggestions on how to straighten her out? Been two days no improvments

 

[Northern Grower]

I usually see that from over feeding N. But it's more pronounced, called eagle claws.

Has your PH been changing?

 

[JbBurnin]

I was having ph troubles, they were too high. Used fast acting sulfur and got runoff down to 6.3-6.6.


It probably is overfed on the N. The bat guano I have is 10-0-1

 

[THCRx]

Im gonna have to say overfeeding nitrogen as well. Doesnt seem too bad, as the color isnt really dark green. The new leaves look good. Im dont think it warrants a flush. Just ride it out and maybe just use ph'd water next time.

 

[JbBurnin]

Well, the newer leaves right above it are twisting up, one more drastic than the other.

Should I flush or wait til soil dries more? I did give them more nutes this time, but my others didn't seem to mind it.
I hope I can get her back to normal, it seems to be getting worse day by day or hour by hour maybe.

 

[JM]

looks pretty healthy... I'd let it go a day and see if it gets a lot worse or not..

also...

Humidity 35-49%

this is low... you want 50-70%

 

[JbBurnin]

I have them on 12/12..35-50% rh is great compared to what it has been previous to moving them were they are now.
The old spot the rh was fluctuating from 17-29% during lights on and 70-85% during lights out.

Now the rh stays constant 35-50% regardless lights on or off.

I've heard many conflicting opinions on the humidity, majority have said 40-60% is perfect and I want it under 60% while flowering to prevent mold, pests, etc.
Correct me if I'm wrong, I probably am.

 

[JM]

yes, dryer is good to prevent mold and inspire thc production... but too dry will close the stomata... blocking growth... I'd say you want 40-50% during flowering... below that is detrimental to plant health.... 50% is a good rule of thumb as a general rul;e... that way theres plenty of atmospheric "headroom" so to speak for water evaporation and it still damp enough no to make the stomata close up.

 

[JbBurnin]

They have not improved, the new leaves look good but coming up slow. The leaves that were canoeing are just getting worse. Some are really cupping severely. I think it needs flushed.

Any recommendations

 

[JM]

yes flush with plain ph'ed water 1X pot volume...