Twisted Leaves - Diagnosis needed!

[juz420]

Hi 420'ers,
Ive got these twisted leaves from a plant that seems healthy otherwise, just wondering if anyone can identify if it is a deficiency or not.
Cheers

Juz420

 

[juz420]

Hi 420'ers,
Ive got these twisted leaves from a plant that seems healthy otherwise, just wondering if anyone can identify if it is a deficiency or not.
Cheers

Juz420

Seems I have found the problem - PH Creep, the PH level of reservoir went up to 6.6 - normally I like it around 5.8

Thanks for Looking