Continued Curling PLEASE HELP

[MoonDude]

This is my first real grow.

4x4x7 - 1000W Dig. - 4x 43W CFL - CoCo and Perlite - GH nutes, flor series and Kool Bloom

Temp sits around 82F, I TRY to keep humidity below 40%, but flirts with 50% often

I have been having issues with Tutankhamon growing, growing, growing and then having heat issues.

I had been raising my lamp 2"-4" daily until last night, because I just got a LUM meter, I moved my lamp to the top of my tent.

I found a nice soft spot for Tutt and moved her, hitting about 65K LUM.

This morning she looked so happy. 30 minutes ago: see pics. Is this type not heat stress and leaves dying out as bud is hitting maturity.

All others have boosters to hit optimal LUMS, except Six Shooters they do just fine on their own.

 

[faded187]

I would say heat stress and potassium deficiency. Should be time to start running plain water anyways no?.If so just let it go it will be fine.

 

[MoonDude]

I would say heat stress and potassium deficiency. Should be time to start running plain water anyways no?.If so just let it go it will be fine.

Confession: I was suppose to flush last feeding and did not.........................

 

[MoonDude]

I would say heat stress and potassium deficiency. Should be time to start running plain water anyways no?.If so just let it go it will be fine.

I am ashamed to say that with ALL the research I did, I had ZERO fans in my tent. Just an exhaust scrubber......................

I added to 6" base fans on the bottom and one blowing over the canopy this morning.

 

[Bailey]

Definitely heat stress its common in small spaces I was always battling heat issues so had to get a more powerful extractor fan

 

[Waira]

... that should help,... temp and RH need to go up together, or you start getting transpiration stress; the stomata close up, trying to reduce water loss, which in turn greatly slows down the flow of water and nutrients from the roots up,... leading to a type of defc. caused by the lack of supply,... mold is more of a worry during dark, with no air movement, high RH and lower temps,...

 

[MoonDude]

Coincidentally I just read up on the stomata and its functions last night. I am hoping my trimming last night is going to cut back on some RH.

My temp and RH are moving adversely? This was before the fans though. I am going to keep watch and reach back out to you if they continue to move inversely.