PH rise, EC rise, less water usage

gr865

gr865

Well-Known Member
foliage2018 said:
Yes, they got HESI. Do you have any experience with Canna? I had awesome results when using them in soil and coco. 1g/w when I was using autopots with coco/perlite and Canna nutes.
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I use Canna but I use it as Less is More. 250 to 300 ppm in veg and 400 to 450 in flower. The only time I have problems is adding KoolBloom to the mix and I get tip burn. I also am growing vertical so the proximity to the lamps could be part of the problem, curled leaf tips.
Just about every grow I see has tip burn, part of the process I guess.
 
foliage2018

foliage2018

Well-Known Member
Update: EC rised by 0,01, PH still 5,9, water consumption the same as yesterday
I attached some photos to show you how the leaves look at this time. As you can see, the deficiency begins at the biggest fan leaves.
Please, tell me your opinion.

P.S. I don't know if I can trust that NPK ratio in AN basic nutes, but they are 4-3-8. When I added Big Bud it should be 4-3,5-9,5 (or 8-7-19). That doesn't sound like K overkill. They also recommend to add a B-52 which is 2-1-4. That makes 5-4-11,5. For example, canna nutes are 4-4-11 for the flowering.
 

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Skybound420

Skybound420

Well-Known Member
Did you begin the epsom salt foliar spray someone suggested? 1 gram per gallon will get you 26 ppm. Ideal ppm for Mg in the feed is 40-50 and you can assume AN has at least 30 in there. I personally don't believe in foliar spray that far into bloom, but it will deliver the Mg on application. If you go that route, spray the undersides of leaves just before lights off. Otherwise you'll need some guess work if adding to the res. If you overdose the Mg in the res, you can lock out other elements and the salts will influence res PH. If you mix into the res, I suggest maybe a half to 3/4 of a gram per gallon.
 
foliage2018

foliage2018

Well-Known Member
Skybound420 said:
Did you begin the epsom salt foliar spray someone suggested? 1 gram per gallon will get you 26 ppm. Ideal ppm for Mg in the feed is 40-50 and you can assume AN has at least 30 in there. I personally don't believe in foliar spray that far into bloom, but it will deliver the Mg on application. If you go that route, spray the undersides of leaves just before lights off. Otherwise you'll need some guess work if adding to the res. If you overdose the Mg in the res, you can lock out other elements and the salts will influence res PH. If you mix into the res, I suggest maybe a half to 3/4 of a gram per gallon.
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Yes, I used that Epsom salt twice 12h apart yesterday.

What if it is not a deficiency but a root rot which I can't identify? I can use hydrogen peroxide just to be sure. Adding it everyday/every other day until a harvest day is not a problem. Hope that there are enough bennies to control a rot is not a way.

Is it possible a root rot can cause this symptoms?
 
foliage2018

foliage2018

Well-Known Member
rkymtnman said:
have you looked at the under side of the leaves with a scope for bugs?
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I guess there are no bugs - it's winter here in central EU and I applied neem oil right before the disaster. Yellow and blue stick traps are clean too. I can check it in 2h.

Ca deficiency? There is plenty of Ca in the nutes.
So we got symptoms like Mg, Ca and K def... what the hell.
 
foliage2018

foliage2018

Well-Known Member
The problems started after the plants stopped to grow in height. I used these AN nutes all the time and no symptoms. Why they could do all of this just in few days?
 
rkymtnman

rkymtnman

Well-Known Member
i would do at least a 12 hr flush with plain water

then start back with the floranova at maybe 3mL per gallon and nothing else for a few days. i would concentrate on getting them eating again so you'd want to see a decent sized EC drop in the first 24 to 48 hrs after the flush.
 
foliage2018

foliage2018

Well-Known Member
rkymtnman said:
unless there is root rot going on but you said the roots look fine.
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I am newbie to hydroponics. The roots doesn't look like all those root rot photos on the internet. But what if? I want to give it a try and apply a hydrogen peroxide. Can't be worse.
 
rkymtnman

rkymtnman

Well-Known Member
is there snot or slime on them? do they smell funky?

some pics would help. some micros will stain nutes.
 
Skybound420

Skybound420

Well-Known Member
NEVER use H2O2 with bennies as H2O2 kills everything. Bennies eat pythium whereas H2O2 "can" prevent pythium, but I've got pythium when using H2O2 so it's not a sure thing. In my experience, bennies are a sure thing.
 
foliage2018

foliage2018

Well-Known Member
Skybound420 said:
NEVER use H2O2 with bennies as H2O2 kills everything. Bennies eat pythium whereas H2O2 "can" prevent pythium, but I've got pythium when using H2O2 so it's not a sure thing. In my experience, bennies are a sure thing.
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I am confused right now. So first try to add a lot of bennies and give it a try? I just have a voodoo juice. How fast will it can eat a pythium?
H2O2 will not kill pythium as every1 says?
 
rkymtnman

rkymtnman

Well-Known Member
so you aren't using anything right now for root rot?

start with the voodoo juice ASAP. max dosage. and top feed the plants with the voodoo so that it gets all in the hydroton too.

when i zoom in on the roots, they do look a bit slimy to me in some spots.
 
foliage2018

foliage2018

Well-Known Member
rkymtnman said:
so you aren't using anything right now for root rot?

start with the voodoo juice ASAP. max dosage. and top feed the plants with the voodoo so that it gets all in the hydroton too.

when i zoom in on the roots, they do look a bit slimy to me in some spots.
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nope, AN recommends to use Voodoo Juice just in the vegetative and a week after flipping to 12/12. So I did. Actually can't top feed them (no way to get to every of them). But I can Flood the system for another minute or two to reach a higher level. How fast will that help? Need to wait few days or few weeks? I can also add a Bud Candy (carbohydrates to feed bacteria).
 
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