phosphorus?

[AJrexxx]

@Waira Here are some better picks. I lowered the ppms in my feed and will do the run off today. I guess it is my punishment for running three strains. I seem to always have one that does not want to cooperate.

 

[Waira]

yeah, it's Ca defc.,.. see how it's hitting right along the veins?-- tell-tale! .... Did you take the run-off pH and ppm's yet? We need to determine if this is locked out as mentioned, or just not getting enough,.. as you know, coco is a major Ca hog, and will bind it up and prevent the roots from taking it,... If your r-o ppm's are stoopid high, you may need to flush, which is a very different deal vs. soil,.. done wrong, you will FUBAR the CEC balance in there, and be fighting it the rest of the grow most likely,... I think it calls for RO/Di water, with 150ppm Ca-Mg, plus 150 ppms reg. nutes,pH ed to 6.0; pour through until the r-o is at or near the input values,... speed draining by setting on a towel or news paper/paper towels, make sure it touches the base (Air pots are elevated underneath, if you're using them)... this will start some wicking action, and draw excess out faster,... A foliar spray would be even better, using your Ca-Mg, and some wetting agent or very mild soap, just enough to stop beading,... spray tops and bottoms of leaves especially, let dry away from direct light, make sure she's fully dry by lights out,...