Two plants, same strain, different issues? *UPDATE and VICTORY LAP*

[bigwallysobchak]

Got room for tomatoes? Good use for the ...

There isn't room for them in the tent, but living in California has its advantages (some lol). I could probably give them a whirl outside on the balcony or porch depending on their light requirements. I'll look into it!

And also what it might look like to cut the OF with something less hot.

Thanks for both suggestions. Hopefully this plays out well... Regardless, I'll be sure to post an update.

 

[bigwallysobchak]

At this point, the clawing one is probably more of a concern. The other just has bright colored tips, but overall appears healthier looking.

Should I keep up with 100% strength AN Sensi Bloom but up the amount to 1L? Or feed with just water with a slightly higher pH, like 6.8?

Something else?

 

[Arthur]

The soil probably has enough nutes in it, I'd test the soil and get an accurate # of what your dealing with before over correcting accidentally. But you should be fine with pH'd water... maybe cal/mg if your under led.

Check that whatever your adding is actually going to go in and stay in the root zone and help get your soil back into line. A lot of ph up adjusts just the feed and has little effect on the medium.

 

[bigwallysobchak]

The soil probably has enough nutes in it, I'd test the soil and get an accurate # of what your dealing with before over correcting accidentally. But you should be fine with pH'd water... maybe cal/mg if your under led.

Check that whatever your adding is actually going to go in and stay in the root zone and help get your soil back into line. A lot of ph up adjusts just the feed and has little effect on the medium.

Will do! Thanks!

 

[Arthur]

If you need something to use as a ph up that stays in the soil, Olympus Up is a calcium carbonate based pH up that will help buffer you back up.
I believe a lot of the problems i seen like this is the high salt content of the nutes building and reacting with the peat they are using causing ph to slide and ppm to skyrocket over 45 to 70 days.

Or... I could have smoked too much. Yeah... that's always possible....

 

[bigwallysobchak]

If you need something to use as a ph up that stays in the soil
...
Or... I could have smoked too much. Yeah... that's always possible....

So as to not completely wreck the roots (I started hearing some crunching as I gingerly scooped), I only dug down a little over an inch and scooped out 10 grams of soil. I added 20 grams of distilled water to bring it to a minimum amount of solution.

pH: 6.73
PPM: 450ish

 

[Beerhunter CDN]

At this point, the clawing one is probably more of a concern. The other just has bright colored tips, but overall appears healthier looking.

Should I keep up with 100% strength AN Sensi Bloom but up the amount to 1L? Or feed with just water with a slightly higher pH, like 6.8?

Something else?

I am using Sensi grow and bloom on this grow. I think there is a fair amount of Nitrogen in Part A Sensi and in the Calmag if it is is AN. I’ve had the same problem with too much nitrogen and backed off on the Part A a bit. I know you’re more concerned about the clawed plant but deficiency or excess problems probably started a week before they manifest and the correction will take time also. My point being that the yellowing plant will need attention also to minimize the problem as it will take time to correct. Arthur has you on the right track, start with pH and ppm in your root zone and go from there.

 

[bigwallysobchak]

I am using Sensi grow and bloom on this grow.
....
Arthur has you on the right track, start with pH and ppm in your root zone and go from there.

Good point.
I think it might actually be best to be feeding them differently now, even if a bit more legwork. It's almost like the yellowing one could use some Cal Mag Xtra, normal Sensi Bloom Part A and the claw-er, less of SB Part A (and no Cal Mag Xtra), hell maybe even just water this next time.

 

[Waira]

:smoking: I think Arthur is on the case with this,.. OF is dogshit in my book, [HASHTAG]#1[/HASHTAG] problem soil here hands down, badly acidic pH, crappy quality control overall,... As far as richness goes, it's OK for auto's as a final soil, but often as not, too hot for seedlings,.. add in the fucked up pH and you're off to a bad start right away,....
I think you may have an off pH soil issue here, maybe,... ....tip claw is N-tox, maybe happened so fast that the color deepening, more of a longer term extra N symptom, didn't happen,... N can be stored by the plant, but only up to a point, and so much at a time,... the other plant looks like Mg defc, but kinda odd manifestation on the tops.. in fact, I'm calling that something different, looks like early Zn defc to me,... Mg is mobile within the plant, and can be translocated from older established leaves to high demand newers; Zn is immobile, so will manifest on uppers first and worst... That said, it's a bit confusing,.. most micro's start lock out around 6.8+ , but are fine under acidic pH... Mg is tougher to lockout, has to be quite acidic.... So my guess is you have a plain lack-of on the micro's, and suspect acidic in-pot pH,.. but not bad enough to lock it out? With RO water, you can go full dosage on the Ca-Mg, IF you have one that isn't 4-0-0 or whatever AN is,...
... Arthur mentioned the Accurate 8 soil pH porbe, a good inexpensive unit, I love mine.. tested against slurry and did fine,.... otherwise it a more $$ unit like Blue Labs, which is basically a modified pH meter, with all the hassle and care needed just like a pH meter....
--- dilemma is how to test now... only thing you can do is a very crude run-off test, using just plain water, no Ca-Mg, no adjusting; these will skew results from their pH buffering affects... water enough to get a good 1L+ of run-off, take a sample at the end, not the beginning (too conc. with everything).... get a pH reading and a TDS/EC if you can.... this will help determine what best to do next....
...stay on the Bloom, no more Grow (N content),.. I know AN products have N in them on several products = ... maybe look into another Ca-Mg product....

 

[bigwallysobchak]

:smoking: I think Arthur is on the case with this,.. OF is dogshit in my book, [HASHTAG]#1[/HASHTAG] problem soil here
...
...stay on the Bloom, no more Grow (N content),.. I know AN products have N in them on several products = ... maybe look into another Ca-Mg product....

Very much appreciated, thank you. Right or wrong, since I needed to water... I watered both with an increased amount of water, 1.3L each, up from the previous 800mL to get a good soaking. Yellow leaves gal got Cal Mag Xtra (ugh, I know), Claws McGraw got straight water. All pH'ed to 6.5.

I'll look to doing the run-off test at next watering. But as I think I mentioned earlier, this all gets complicated by going on holiday for 7 days at the end of next week. My plan, regardless of composition, is to water the day I leave and use the little Blumat things to buffer them drying out too much.

With AN's 100% money back guarantee, I'll probably call them on it due to the high N and find a replacement. I'll also plan to use something different next grow. Do you happen to have a favorite soil? Or top 2?