New Leaves 'cupping' down

Damian138

Member
Im almost 2 weeks into flowering and all the new leaves around the flowers are starting to cup downward.
They are in 6" RW on hydroton on a flood table with 1000W HPS, GH Duo.
Im currently flushing with clean after I started getting a lot of yellowing on fan leaves and more N didnt help. They started cupping not long after flooding a few days with no nutes.
The first 2 flushes, the PH spiked to 8. now, a couple days later it is starting to stay around 5.8 after flood.

Any ideas?
Thanks!

Sorry about the blurry images, my phone camera sucks...

flowering_001.jpgflowering_002.jpg
 

Damian138

Member
Anyone?
the problem has gotten worse since I first posted, new leaves around flowers are cupping in.
My light is about 12" away could it be heat stress?
 
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