Leaves curling upwards?

[MM2K6]

I've always worked on the general rule of thumb that leaves curling upwards has an environmental cause, heat stress or humidity issues etc, and downward curling leaves mean a problem with your rootzone.

could be root zone was packed with roots before transplant and root were pretty dryish..

 

[Old Ant]

Good luck with ya grow MM2K6, some of the fantastic folk here helped me get my grow back on track when it started going badly
Honestly saved me a whole bunch of heartache

 

[MM2K6]

Flushing has helped I can see already, leaves going back to normal! thanks guy's so salt build up?
20l flush

 

[Hudo]

Flushing has helped I can see already, leaves going back to normal! thanks guy's so salt build up?
20l flush

Sounds like it, water more frequently with Coco, but again this will be controversial among other members

 

[MM2K6]

Sounds like it, water more frequently with Coco, but again this will be controversial among other members

will up the water timer to go for a few extra minutes. I water 2 x per 24 hours @ 5 plants around 20 liters per 2 days if that helps?