Red Poison - leaf issue - please advise

[Donald Gibbler]

Hi guy and gals,

Could anyone help identify the issue below? I am growing with pro-mix hp cc. Let me know if more info is needed

 

[Garage_Grower]

Copy and paste the filled out form from here for best results!

https://www.autoflower.org/threads/...ill-out-first-with-the-data-that-matta.45991/

 

[Donald Gibbler]

Problem: see pictures
-Medium/grow method: Promix HP - CC
-Feed and supplements used: Dutch Masters Nutrient Line - half strength from feed chart recommendation
-Water source: RO/DI; tap- dechlorinated - PH - 6.2
-Strain : Red Poison -
Temp and Humidity : Day 77 / 40%.
Night 70 / 50%
- Light used: HPS DE 1000W 18/6
-Additional info: Two days since this
✂ - - - - - - - - - - -
see pics above
@Garage_Grower

 

[Donald Gibbler]

Does anyone got any ideas?

 

[Waira]

pretty weird symptoms, atypical,.. but I'm leaning toward a P defc.,... what's the P content of those nutes? I see some tip clawing too, possible N toxicity,... what else is going in? Are you testing pH and TDS/EC of the feeds? it's alos quite possible the in-pot pH is off, locking out P and other nutes... you'll need a pH soil probe to best determine this, otherwsie it's a crude estimate doing a run-off test, which has to be done right to even get that crude estimate....