yellow leaves, green veins, cal/mag? N? UGG

[stella]

Photos of some BIg Buddah blue cheese, week 4 of 12/12. Using RO water with Lucas formula+ epson salts. 1000-1200 ppm Ph 5.6-5.8 water temp 72 DWC 400 sodium.
Roots grow, then seem to stop- (don't see new root formations). Pic in back is some NYC diesel. On both plants, leaves seem to shoot straight up, although the yellowing doesn't seem to prevalant in the Diesel (yet)
I started noticing this about a week ago, and started feeding cal/mag to the res. It almost looks like it could be a potassium def too?
can anyone confirm? And, let me know course of action..
much love

 

[stella]

umm 16 views and noone can answer? pls help-

 

[Hydro-Soil]

Photos of some BIg Buddah blue cheese, week 4 of 12/12. Using RO water with Lucas formula+ epson salts. 1000-1200 ppm Ph 5.6-5.8 water temp 72 DWC 400 sodium.

Dump your res, use the epsom salts for your feet, kick your ppm back up to 1300 (about 8ml/gal)and raise your pH to 6.1 until a week after your yellow goes away. (About two weeks for your situation, I'd guess)

Your plants will love it. FNB has everything they need, the mag just needs to be made more available through day 20-30 by upping the pH.

Don't forget to drop your pH back down to around 5.8 for the rest of the grow, Mag tastes like *#$!@ when you smoke it so the lower pH makes it less available again.

 

[stella]

Thanks Hydro- got the PH to 6.1..waiting to see what happens..
can you believe 0ver 50 views, and you are the ONLY one who could help a brotha..
what kinda community is this, anyway..??
Ill keep you posted
Thanks again

 

[Weedio]

Aye MG is one nasty fooker.
You had quite a complicated problem dude, had to wait till someone with the know how came along. I'd rather wait than be given the wrong info, wouldn't you? =)

 

[Hydro-Soil]

Thanks Hydro- got the PH to 6.1..waiting to see what happens..

You don't have any Epsom salts in there do you? Upping it to 6.1 with that in there will allow too much mag to be available. Please tell me you dumped the res first? (You didn't mention that part so I'm just a tad worried)

 

[smokesalot420]

can you believe 0ver 50 views, and you are the ONLY one who could help a brotha..
what kinda community is this, anyway..??
Ill keep you posted
Thanks again

Can you believe that "this kinda community gave you help within 4 hours of you posting? Did you ever consider that people may be in the same situation as you and trying to figure out the problem, so that's why they viewed? Maybe people looked at your problem and didn't know the answer and didn't want to give you the wrong or bad advice.... There is countless possibilities that you may want to consider before biting the hand that feeds you is my

I hope you fix your problems!

 

[stella]

Smokeasalot
yeah, my bad. I do lurke here often, was getting anxious as no one was responding to my situation... impatient yes, ungrateful, no

 

[stella]

Hydro
yes flushed res, i am using flora bloom AND the micro at lucas ratios . At your suggested 8ml/ga lof bloom my ppm was only 400 or so..(don't have floranova) so i figured the micro couldn't hurt...mistake???
ph 6.1
why are those leaves pointing straight up?
ppm 1300, adding plain RO water (ph adjusted to 6.1)
im at day 34 (more than 1/2 way home)
thanks again, i'll post pics in a couple of days- hopefully they are looking better. This is my first DWC, and my old ebb flow/flood drain never ran into this cal/mag issue before..totally stumped me

 

[smokesalot420]

Stella- It's cool, I know how frustrating it can be to have sick plants! I hope your plants turn around....

DWC plants can get bad pretty fast so make sure you are watching them closely, but the good thing is that you identify a problem early and fix it you will see the plants respond much more quickly then using other growing methods (expect maybe aeroponics). Good luck, it sounds like you're getting good advice so far so hopefully things will get better soon!

 

[Hydro-Soil]

Hydro
yes flushed res, i am using flora bloom AND the micro at lucas ratios .

Excellent. Had me worried

At your suggested 8ml/ga lof bloom my ppm was only 400 or so..(don't have floranova) so i figured the micro couldn't hurt...mistake???

Nope, you're good. The 8ml/gal only is for FloraNova. You did correctly by adding the Micro. 8ml micro 16ml bloom per gallon.

why are those leaves pointing straight up?

No idea? I've never used cal/mag or epsom salts much, just read a lot of people that have. I'll stick to what I know works

I'm looking forward to the pics

 

[Cruzin]

Gratitude is the most healthy human emotion. Flush your shit and give them some cal/mag.

 

[Hydro-Soil]

Flush your shit and give them some cal/mag.

This is the typical response you'll get when posting about a deficiency around day 20-30. I'm sure Cal/Mag is necessary for a lot of nute profiles, but not FloraNova. Thanks.

 

[Cruzin]

so to be clear floranova provides sufficient calmag?

 

[Hydro-Soil]

so to be clear floranova provides sufficient calmag?

Yes, it does.
2% Water Soluable Magnesium
4% Calcium
That's straight from the FloraNova Bloom bottle label.

It's been specifically formulated to be used with RO water that, as we all know, does not have much of anything in it.

 

[stella]

but im NOT using floranova, just regular micro and bloom...makes me wonder if just raising the PH is gonna be enough? I noticed this same thing in the veg res, so i just added cal/mag until the green came back to the leaves..and the roots started growing again. I was also having problems with weird growths on my buds; not forming completely- kinda re-vegging around week 7 of a 8 week cycle..wondering if they are related..??
I also changed the filters on my 3 stage RO system...the 1st stage was completely rusty lookin... Anyone else wanna chime in, especially if you are on the LUcas schedule, Not using FloraBloom?? Or maybe i invest in some?
kindasorta still confuzed...

 

[Hydro-Soil]

but im NOT using floranova, just regular micro and bloom...makes me wonder if just raising the PH is gonna be enough?

Right. but if you're using the Lucas formula you're mixing 8ml/gal of micro and 16ml/gal of bloom. Same as the 8ml/gal of Floranova bloom.

YES, raising the pH is enough, no matter which nutes from GH you're using, as long as you mix them according to the Lucas formula.

As for the RO machine I highly recommend a ppm meter for checking the output. An improperly maintained machine can actually be a worse health hazard than straight tap water

 

[stella]

checked the ppm- less than 100 out da hoze, so im in good shape as far as that's concerned. One question, as i have different plants in different stages of development.. do i wait for some signs of cal/mag deff. and then raise the ph accordingly? how will that affect the plants that are in week 1 or 2 or 7 or 8 compared to the plants that are in at week 5 or 6?
Also- my roots are nice and white in the veg res, but they are all brown, slow or no new growth in the flower room (pics)- no horrid smell in the res, but problems nonetheless.
i got rid of all the dead growth, hope to see some new sprouts in the rockwool soon...Is it safe to assume this has to do with my Cal./Mag problem, or is it something different altogether??
should i continue feeding at 1300ppm? seems kinda high seeing that there are barely any roots to suck up the love....

 

[Hydro-Soil]

checked the ppm- less than 100 out da hoze

Of an RO machine?? You need to change your filters as it shouldn't be anywhere near that high of a ppm.
Edit: It should be around 10ppm, if that.

One question, as i have different plants in different stages of development.. do i wait for some signs of cal/mag deff. and then raise the ph accordingly?

The deficiency shows itself at around day 20-30 depending on your strain. It seems that when the buds are just forming there's a greater demand for magnesium. If you have plants of all stages of growth feeding from the same res, you'll want to just keep the pH at around 5.8-6.0. You'll get a slight yellowing on plants that are at that 20-30 day mark but the rest will be fine and still taste good.

Also- my roots are nice and white in the veg res, but they are all brown, slow or no new growth in the flower room (pics)- no horrid smell in the res, but problems nonetheless.

Give it some time to recover, the feed strength shouldn't be an issue, as long as you still have 'some' roots in that rockwool somewhere.


I would also look into dropping your res temps just a bit. Call me paranoid but 68F is about what I shot for as it holds more oxygen and staves off a huge number of algae and other res temp issue problems. You are running dwc, right? (I finally switched to E&F and Drip and love it. No more hassles)

 

[Crush]

Can I ask when the last time you changed your bucket before this happened?