possible HPA NUTRIENT issue

dochickory

Well-Known Member
This example is a White Widow leaf sample. Short history of plant started in rock wool from seed 9/7 was stunted by lack of nutrients first 2-3 weeks, since I've been using Botanicare 3-2-4, with supplements of Cal-Mag, Aquashield and Pro-Tekt, in recommended Hydro amounts and less.


wwissue1012 002.jpgwwissue1012 001.jpgwwissue1012 003.jpg wwissue1012.jpgww1010 (2).jpg

Another view looking up under a leaf on the plant, the roots are beautiful and fully developing, that's the problem absorbing anything I throw at them LOL
There was one major issue other than lack of nutes early on. I occasionally would mist the plants with pH'd water and noticed they liked that. I thought running a branch for a mister in the compartment would be good, for humidity and foliar feeding. I gave little thought to the fact that the mist would be foliar feeding the same nutrients, since I only have one solution delivery system. I ran the branch with the mister anyway.

The results were momentarily explosive, after about a day and a half the plants grew too fast! thinking this was not good, I disconnected that mister nozzle while the plants looked like new green leaf lettuce leaves wet, fresh and tender, however the perimeters of all the leaves were turning yellow-brown, I watched them slowly get better, I thought, this is when I added the Pro-Tekt as a supplement. Things steadily improved for all three plants, until 2-3 days ago I noticed some of the leaves on WW seemed odd, bumpy, with light brown splotches.

This morning it was worse. The other 2 plants aren't showing this issue. They are in separate compartments though, they share the same nutrient solution. My guess is it might be Mag deficiency from looking at a chart example lots of people use on this site.

I also thought maybe the LED panels were too close for the young plant Hans recommends 15-40 cm I had them at 15 and raised them to 20-25, but WW has since grown it's 15cm again.

Anyway this is my first and experimental HPA grow, I never expected WW to grow as vigorously as it has, with the new HPA system, LED panels and other challenges with this makes for quite a learning curve. I really didn't care much about WW it was a free regular seed, so I figured experimenting was in order and didn't care if I lost WW, but after the time and effort and the progress WW has made, I'd hate to lose it now. :peace: any constructive information would be appreciated. I even considered the individual diode colors of the LED panel being too concentrated and not blended, I took a picture of a leaf with the color defined like a kaleidoscope shinning on the leaf, wondering it if would effect the plant somehow, maybe it did?

This will be a miracle if anyone even reads this let alone responds. This whole adventure is a scream :hump:
 

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LivingCanvas

Well-Known Member
Does not look like a MG deficiency to me at all. Mg deficiency is usually where the interior of the individual leaves is a lighter green than the veins and the outer
serrated leaf edges will remain darker green. To me it seems like some other issue, potentially being a Ca deficiency. When I get rust spots it's usually Ca, and yours
looks like potentially advanced issue due to how quickly things happen in HPA.

I'm curious as to what % recommended dose you're giving them? Feed times? the main issue with diagnosing in HPA, is the limited # of people
who run HPA rigs and the lack of overall information. I know you said you were giving them CalMg but the brown spots seem to me to be a Ca issue.
And bumpy distorted (as in not smooth and soft) leaves also suggest potential issue with pH. What's your pH at? In HPA/Aero I usually stay round 5.2-5.5.
 

dochickory

Well-Known Member
Does not look like a MG deficiency to me at all. Mg deficiency is usually where the interior of the individual leaves is a lighter green than the veins and the outer
serrated leaf edges will remain darker green. To me it seems like some other issue, potentially being a Ca deficiency. When I get rust spots it's usually Ca, and yours
looks like potentially advanced issue due to how quickly things happen in HPA.
Yes, everything happens fast, I was even thinking the sudden change from t-5 to LED concentrated spectrums and that chart that's circulating is hard to discern for me

I'm curious as to what % recommended dose you're giving them?
I am following Botanicare advanced schedule Pro Blend Pro Gro 1.5oz/3gal, Aquashield 1.1oz/3gal, Cal-Mag .71oz/3gal, Pro Tekt .5oz/3gal
Feed times?
5 min off/2 sec on, I tweaked with that for awhile with the larger root masses they seem to have settled down

the main issue with diagnosing in HPA, is the limited # of people
who run HPA rigs and the lack of overall information.
I totally agree, and what some consider HPA

I know you said you were giving them CalMg but the brown spots seem to me to be a Ca issue.
And bumpy distorted (as in not smooth and soft) leaves also suggest potential issue with pH. What's your pH at? In HPA/Aero I usually stay round 5.2-5.5.
I've been trying to keep pH @5.8 +/- I still am using drops LOL stupid, and have yet to get a ec meter Thank You for your reply, any more thoughts please let me know, I'm going to top White Widow and try cloning the top in a hole with the same mist solution, thinking it will be too strong.

Additionally the other 2 plants are on the same mist solution with no symtoms! The germination or sprouting was not a walk in the park for 2 of the 3, the affected plant (White Widow) being 1 of them Thanks Again!
 

dochickory

Well-Known Member
White Widow has been severely bonded to training!

There are no more leaf issues as there are leaves LOL!
 

PetFlora

Well-Known Member
I think I experienced every known problem with HPA, finally threw in the towel 4 grows back.

When hpa is dialed in your roots will look like cotton candy. Your roots appear too wet. The line between too dry and too wet is a razors edge, and changes due to heat and humidity

I started out with FF and Botanicare- not ideal for hpa.

I switched to DM (much better) then I switched to Hydroponic- Research VEG+BLOOM, a one part dry formula. It's awesome
 

dochickory

Well-Known Member
I think I experienced every known problem with HPA, finally threw in the towel 4 grows back.

When hpa is dialed in your roots will look like cotton candy. Your roots appear too wet. The line between too dry and too wet is a razors edge, and changes due to heat and humidity

I started out with FF and Botanicare- not be ideal for hpa.

I switched to DM (much better) then I switched to Hydroponic- Research VEG+BLOOM, a one part dry formula. It's awesome
thanks for the post, I have been running into lots of the same but sure seems to work good! sure tweak & tweak I gotta be tweaking something LOL, I read one of your earlier posts somewhere, you were writing of the fact of being dry VEG+BLOOM not shipping water etc. etc. does it dissolve completely? I'll sure look in to HR thanks! 1 part would also be welcomed! thanks again PetFlora

oh! btw you probably have a good idea if you can use the same solution for the clone, as the plant is using, the clone cutting is from
 

PetFlora

Well-Known Member
Only a tiny amount (< 1/8 tsp) remains when I mix with a paddle. Could dissolve 100% with an electric hand blender
 
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