Curling leaves in late flower

[Cheeba]

Hi Folks,

Week 9 of flower and leaves started clawing last week. What causes curling and how would you remedy?

It could be overwatering as the coco I’m using retains water really well. Nute burn on tips is from heavy feeding (bio canna bloom, boost, rhizo). Wind burn is unlikely.

Flushing week 10, thanks.

[PLreef]

Possibly nitrogen toxicity.

[Cheeba]

Yeah I saw that listed in a GWE article, but they’re not dark green and are getting bloom nutes. I may have to reconsider, thanks.

[CaptainWiese91]

Overwatering Can make these symptoms too