Definitely stretching while bushing back out, so it looks like they're taking the 13.5/10.5 cycle well...
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That said, I definitely still have a deficiency going on, and now that humidity is getting to 55-65% daily I need to nail this down... Any ideas? I'm thinking needs more Mg...
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If it’s getting locked out, then swap water and renute....you have a long way to go if excess salts are locking out a nute at this early stage...I suspect Mg deficiency still... Especially since my pH has been drifting down constantly nearly this whole grow. I'm thinking Mg is getting locked out more often than not due to the pH dropping regularly.
Speaking of, I'm gonna go bump the pH back up right now...
Locked out is the wrong term - the low pH is negatively impacting uptake. (Mg is absorbed above 6.0 if I'm reading the charts right, and my pH has routinely been dropping to the 5.6ish range).If it’s getting locked out, then swap water and renute....you have a long way to go if excess salts are locking out a nute at this early stage...
It shows wherever tissue gets damaged: light could be doing it directly if too intense or hot; plant could be damaged in a sensitive/weakened area and gets “burned” when it otherwise wouldn’t, no matter where that area is located; light damage could occur on leaves that are wet, from drops of water, condensation, physical damage/leak...prob other potential reasons...Above said, @Or_Gro you did prompt me to see how much light they were getting after 3 days' stretching - and I was putting about 1000ppfd on the center plant... O_O
Symptoms are showing on a few low leaves and a few upper leaves - I would suspect light burn to just show near the top, no?
100 on that final point. Those leaves' days are numbered.It shows wherever tissue gets damaged: light could be doing it directly if too intense or hot; plant could be damaged in a sensitive/weakened area and gets “burned” when it otherwise wouldn’t, no matter where that area is located; light damage could occur on leaves that are wet, from drops of water, condensation, physical damage/leak...prob other potential reasons...
If it’s not continuing on other leaves, it prob happened right after canopy was thinned.
After defol this is always a risk...no biggie at the level on your plants...besides, you’ll prob pull those leaves in a week or two anyway....
Yeah, i would...pH swings might result in unbalanced buildup of unused nutes...replace with freshly balanced soup, to eliminate that possibility.100 on that final point. Those leaves' days are numbered.
I'll keep an eye on it. Since the symptoms have been lingering for a couple weeks now I still think my pH roller coaster has been giving me some headaches.
Maybe next weekend when I change to bloom soup I'll skip the usual 50% change protocol and refresh the whole res for good measure...
Give em theI may do a rinse phase in between the two soups too. I have 3 spare square buckets I can evacuate the plants to (and ask mrs SB to work on them from) while I clean the system. I'll probably run a bottle or 2 of CVS h2o2 thru the system w/ some fresh water after I drain the current soup.
While I have kept it under control with the enzyme treatments, I'm still not convinced there aren't some microorganisms in the chiller loop somewhere. This pH excitement hasn't been like anything I've dealt with in previous grows. Usually the pH bounces for a day after water changes - this grow has typically taken 6-7 days to stabilize. With everything else looking good, bacteria still seems like a possible candidate for causing the annoyances.
And to be clear I know I mentioned doing this earlier in the grow over on GC, but I never actually did it. I figure a time when I'm doing a full drain anyway is probably the best time to do it
Nice!
Compared to?Ooh - remeasured this afternoon. ~10-10.5" on the middle plant now...
9-9.5 at last measuring on WednesdayCompared to?