Dutch Passion Yozhik grows Auto Night Queen & Auto Blackberry Kush
- Thread starter Yozhik
- Start date
Yozhik
INTJ & Non-Violent Domestic Extremist
Day 55
Looks like something is "off" on the feeding.
Leaves are yellowing at the edges and tips are curling, like an elf's winklepicker.
It could be;
I'm erring on the side of c)
I can't undo yesterday's feed, but I can make every effort to correct with the next and future feedings.
So today they will receive a light foliar feed of first aid kit during lights out.
Think of a light misty night rain ...
I have recalibrated the BlueLab pH meter.
It was off, and may have easily caused a pH issue.
pH doesn't need much inaccuracy to make a huge difference
It's actually VERY difficult to get the EC down.
Tap water here runs at pH 7.7 and 0.6 EC.
Using just a simple pH Down product to get the water to a usable 6.3 - 6.5 pH, raises the EC to around 1.8.
NB: ph 6.3 and 1.9 EC is tap water + pH Down only; i.e. ZERO nutrients.
Would be interesting to see what something like Advanced Nutrients Connoisseur Bloom A+B pH Perfect @ 1/4 strength would do to the EC.
Thing is, 1/4 strength would NOT be enough for the pH Perfect buffers to do their thing, to tap water @ 7.7 pH.
So the pH Down would absolutely be needed in addition to the Bloom nutes.
It then becomes a question of, why not just use the Advanced Nutrients pH Perfect base nutes, and nothing else, at a level that provides enough buffer strength to correct the initial 7.7pH.
So I might compare the EC of;
Interesting times ahead.
Looks like something is "off" on the feeding.
Leaves are yellowing at the edges and tips are curling, like an elf's winklepicker.
It could be;
a) nute burn
b) pH off, causing deficiency/toxicity
c) all of the above
b) pH off, causing deficiency/toxicity
c) all of the above
I'm erring on the side of c)
I can't undo yesterday's feed, but I can make every effort to correct with the next and future feedings.
So today they will receive a light foliar feed of first aid kit during lights out.
Think of a light misty night rain ...
I have recalibrated the BlueLab pH meter.
It was off, and may have easily caused a pH issue.
pH doesn't need much inaccuracy to make a huge difference
MEMO TO: Self
RE: pH meter
Calibrate more often, you retard.
I might go for a couple of faux-flush, lighter feeds, with base nutes only at diluted strength.RE: pH meter
Calibrate more often, you retard.
It's actually VERY difficult to get the EC down.
Tap water here runs at pH 7.7 and 0.6 EC.
Using just a simple pH Down product to get the water to a usable 6.3 - 6.5 pH, raises the EC to around 1.8.
NB: ph 6.3 and 1.9 EC is tap water + pH Down only; i.e. ZERO nutrients.
Would be interesting to see what something like Advanced Nutrients Connoisseur Bloom A+B pH Perfect @ 1/4 strength would do to the EC.
Thing is, 1/4 strength would NOT be enough for the pH Perfect buffers to do their thing, to tap water @ 7.7 pH.
So the pH Down would absolutely be needed in addition to the Bloom nutes.
It then becomes a question of, why not just use the Advanced Nutrients pH Perfect base nutes, and nothing else, at a level that provides enough buffer strength to correct the initial 7.7pH.
So I might compare the EC of;
- tap water + pH Down, versus
- tap water + Advanced Nutrients Bloom A+B pH Perfect
Interesting times ahead.
Wile e Peyote
Who, what, why and where
From what I've heard you don't pH advanced nutes if your pH is between 5.6and 6.3 something to do with them using chelated npk and other bits according to the website you shouldn't get any pH problems http://www.advancednutrients.com/articles/ph-perfect-technology/
Go to the bottom of the article [emoji106]
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Yozhik
INTJ & Non-Violent Domestic Extremist
True - but my pH is nowhere near 5.6 - 6.3.
Hey - don't get me wrong - I LOVE Advanced Nutrient's pH Perfect range.
ALL of my grows prior to this, have been done with AN from start to finish.
I am a happy, dedicated pH Perfect cultist.
HOWEVER - I'm still wary of some aspects ...
Example; I find it has a tendency to really play with the EC.
Normally I run at about 1/2 strength with the base nutes, or even as 'weak' as 1/4 strength, depending on where in the cycle the plants are.
It gives me enough of the buffer properties to get my tap water based feedings down to a pH of 6.4 ish, which is where I like to run it for soil [target 6.3 - 6.5 pH]
As an exercise of curiosity, I made a simple solution of AN Bloom nutes at a little over 3/4 strength [i.e. 3.33 ml/l], and Big Bud @ 2 ml/l [within recommendations].
Nothing more; base nutes + 1 additional supplement.
The pH was at 6.4, as expected.
EC was at an eye watering 3.1.
With just Base Nutes at 3/4 strength, and 1 bloom supplement within recommendations.
That woke me up big time.
I had become complacent with EC.
It kinda came hand in hand with the pH Perfect complacency.
With the pH Perfect range, it's so easy to never pick up another pH pen again.
But along with not checking pH comes its ugly sister - not checking EC levels.
In the video on that AN link, they show the pH Perfect capabilities in 3 different water sources, for a hydroponic scenario.
I think the starting pH for the water was 4.6, 6.4 and 8.5 ... or thereabouts, and they all miraculously came out at pH of 5.7 - 5.8.
Which is truly amazing, and consistent.
It does what it says on the can.
I can only imagine what the ECs of those final water solutions were.
Hey Yozhik! I've been silently following you at break times at work and such. Don't forget the ac runoff water. It's usually a pH of 7 and a very low EC. It's perfect for an EC lowering grow medium flush! I'm doing it now too because I'm about finished with some of the girls. I like to starve them of nutes before harvest time.
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Wile e Peyote
Who, what, why and where
Hey yoz what pH down do you use my tap water has a ec of 0.2 when I add pH down it stays the same and also consider halving all your nutes including additives I use big bud but only at 1 ml per ltr the same with overdrive I've used the pH perfect base nutes but never more than 2 ml per ltr some on 1.5 ml per ltr the whole grow hope you get it sorted [emoji106]
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