Need help!! Don't know what's wrong..

she was fine I took a few clones from her and then I tied her down for some LST but i started to notice her fan leaves getting brittle and spots on them.. All I can recall doing is spraying her with water.. It seems just to be fan leaves her growth is fine from the LST.. Her shoots are growing upward!! She is in FFOF I put some compost on her the top layer and mixed it in a few weeks back.. Any help would be appreciated.. Last pic is her on Wednesday when I first tied her down..

looks like it could be a P deff

was it sunny when you sprayed them ? could cause some light burn on the leaves

Maybe phosphorous. What's your ph? Phosphorus becomes insoluble in overly acidic or alkaline conditions.

What nutes do you use and how often?

that looks very much like a phosphorous deficiency, which are usually caused by ph being higher than 7 or lower than 6.2. sometimes very heavy wet soil can cause it as well.

Indeed, light burn is another possibility. Always make sure the leafs are dry before exposing to any intense light sources.

But it looks more consistent with phosphorous deficiency. Or something like ph or nute imbalance locking out the P.

I always advise adding 25% perlite to any FFOF mix for this very reason

good luck