Leaf clawing in flowering

I’m currently at the end of week 3 in flowering and it seems the leaf clawing is getting worse, running a 400 watt hps with 6 plants in FFOF soil, was feeding with general organics bio thrive bloom and cal mag half strength but have stopped feeding this past week with no real improvement, Tested the ph of my runoff water coming out of soil and it’s right around where i think it should be at 6.5, just wondering what are my options and if I can still expect a decent harvest...any help would be appreciated

I usually see clawing from N toxicity. Cant tell if thats what's going on though because of the picture in HPS lighting but that would be my guess. I don't do soil but I think the thing to do is flush to get some of the excess out. Your N feeding should be on the low end 3 weeks into flower.

AbeFroman said:

I usually see clawing from N toxicity. Cant tell if thats what's going on though because of the picture in HPS lighting but that would be my guess. I don't do soil but I think thin thing to do is flush to get some of the excess out. Your N feeding should be on the low end 3 weeks into flower.

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Ok thanks for the reply, would I be alright flushing with tap water or no? The ph of my tap water is on the high side 8.0

Again I don't do soil. In coco I always adjust my PH to my target even if Im feeding or running straight water through. Large PH swings of any sort tend to give negative feedback. So feeding with a 8.0 PH will likely piss off a plant used to being in the 6.5 range IMO.

But one of the soil guys can probably advise you more on that matter.

GameGreen84 said:

Ok thanks for the reply, would I be alright flushing with tap water or no? The ph of my tap water is on the high side 8.0

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I never ph my water for soil only for hydro

Lol flush soil.... hahah
Just stop feeding it.. anything but pHed water.
Not all elements are moved equally easy in soil. Dumping a bunch of water on will remove some and leave others.
Before they may just have been in excess, but once you start getting ratios out of whack, it will take you a year to rehabilitate the soil.

Is a really shittie picture. Next time take the pics with the HPS off.

You also seem to be missing lots of leaves...

Id leach the soil and then feed it 1/2 flowering nutes and wait for the soil to dry completely before watering again at full nutes.
Soil has a PH swing as it goes from wet to dry.