GHS GWS problems.....Any help appreciated

View attachment 1898547View attachment 1898548View attachment 1898549Hi All,

I have some GHS Great White Shark going and am having some burning on the edges. I am 99% sure this is not nute burn. They are in amended promix. I just gave them a mild feeding of roots organics Budda Bloom, Budda Grow HP2 and Trinity. 5ml of each. The problems were apparent before I fed them. Could it be a phosphorus deficency or maybe Cal/Mag? Any help is appreciated.

yeap...just some slight burn going on it looks like...I'd just back off your nutes by 1/2 for a week to see how it reacts...did you flush between veg and flowering nutes or just keep going strong with it?

They are in amended promix and are on day 30 of 12/12. They started showing probs about a week ago. They had nothing but ph/d water until 2 days ago. From all that i have read i should not flush an organic soil (subcool) am I misinformed?

It seems I'be been whoring this link out a lot lately...but it's a great post: https://www.rollitup.org/marijuana-plant-problems/488004-guide-chem-deficiencies-abundancies.html

Massah may be right, it could be nute burn, or it could be early calcuim deficiency. If it's subcool's mix, it should have plenty of calcium though, because it has dolomite lime. You're problem is in its early stages, so don't do anything drastic. Try giving your plant a bottle of spring water, like Evian or whatever...spring water usually has plenty of calcium and magnesium.

Good luck!

Thanks for both the replies. The mix is not subcools but is similar. I do use dolimite lime in my mix and was cooked 8 weeks before they were planted.. I really have it in my head it's a cal/mag problem as I would think if it were nute burn I would have seen symptoms earlier, am I wrong on this? Also, this probably isn't the right place to ask but does anyone have a definative (spelling?) PH recommendation for promix? Every post I have read on this offers recommendations between 5.8 and 6.8. That's a very wide range. I've been watering at 6.3 up to this point. I just have this feeling I'm not in the sweet spot but am afraid to try a lower or higher as they look ok now but IMHO not as good as they could be.

if you are using an organic compost/etc mix then you want a soil PH of 6.5...You probably don't need any nutrients since its chock full of them...as long as you haven't overwatered or flushed the soil should still have lots of goodies in it for the plant to feed on...I'm still betting burn...so cut out the nutrients all together...if you want to add them in you are going to have to flush to remove whats already in there, but since you are in flowering if you just want to suppliment some P/K in a few more weeks that will probably be all you need, but you probably won't need it at all...

At this point I'd just cut out the nutrients...just give it the water it needs and you'll probably be fine...if you cut out the nutes and just give it water when needed over the next week and it doesn't stop, then I'd worry more

thanks massah.
I'm gonna trust your experience and go with just water at 6.5. hopefully it is burn and I'll just run an extra gallon through her next time I water. ill post how it goes. thanks again.