Leaves curving down but leaf edges cupping up?

ELRooster · Apr 13, 2013

Has anyone experienced this before? Thanks

tyler.durden · Apr 13, 2013

Doesn't look like any burn going on with your tips, may be excessive heat. What's the temp and humidity in there?

superstoner1 · Apr 13, 2013

Looks like heat and a possible ph issue.

ELRooster · Apr 13, 2013

My temp is running between 75-78 and humidity is at 40. My PH has been dropping to about 5.5-5.6 and I bring it back to 5.8-5.9. PPM is at 1600.

superstoner1 · Apr 13, 2013

Cut the nutes to around 1000 and what is res temp?

ELRooster · Apr 13, 2013

Water temp is 69, I have had the nutes lower in the past but then I get opposite cupping because of magnesium deficiency. These are in 4th week of flower and 4 feet tall.

70's natureboy · Apr 13, 2013

I think they look pretty good. They look like they are about maxed out on nutes though. I think you could cut it back just little

thedumbguy · Apr 14, 2013

heat prolly

superstoner1 · Apr 14, 2013

ELRooster said:
Water temp is 69, I have had the nutes lower in the past but then I get opposite cupping because of magnesium deficiency. These are in 4th week of flower and 4 feet tall.

Then lower nutes and add epsom salts.

ELRooster · Apr 14, 2013

I think I will try the epsom salt I have heard that might work. The only other thing I can think of doing is instead of flushing every 7 days Is try and flush every 5 days so I can lower PPM but they would get a fresh load of nutes more frequently. Thanks for the replies

ELRooster · Apr 14, 2013

Flushed the system and took a few more pics.

Leaves curving down but leaf edges cupping up?

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