What's my problem?

[Buds Buddy]

Hi all. Been doing a Journal but things are going south so need some help. I'm growing in FFOF & using Mega Crop for the 1st time. The plants vegged for 5 weeks & tomorrow will be 5 weeks into Flower. Temps run 77 - 81 F & RH is 50 - 60%.
Using 2 Mars Hydro TSW 2000 LED's for 3 plants. I haven't pH'd anything as I keep getting told it's not needed with MC.
I'm not so sure about that one ???
When I look at the plants I see an "N" def. but I'm told it's not "N" def. but somethings not right. Can anyone tell me what is going on & how to fix it? Any advice would sure be helpful as I'm lost when it comes to figuring out this MC stuff.
It started on my Gorilla Girl about 7 - 10 days ago. She has been getting about 5 leaves or more per day yellowing & falling off. Over the past 2 - 3 days my Afghan Kush has started doing the same thing.
Since I thought this was an N def. I upped the dosage of MC from 6 to 6.5 grams per gallon. Not sure what to think.

 

[AdaminCO]

6.5... getting up there. I ended up having to back mine back down to 4.5.
@InTheShed and @Emilya helped me with my MC issues. Maybe they can chime in.
It looks like you’re running a bit hot.
How’s your water/feed schedule?

 

[Buds Buddy]

No Water / Just Feed. Feed about every 2nd day. Depends on Pot Weight. About 1 gallon per pot.
Emilya popped in on my journal. Her advice was maybe I should take other peoples advice instead of the ones posting in my journal. I actually think I have some of the better MC growers giving me advice. I get most my info from @MrSauga , @InTheShed & @Pennywise , besides what I read in other posts, etc.

 

[Buds Buddy]

I did back down on 2 of my plants. I was at 6 grams per gallon on the Afghan which I lowered to 5.5 because of "N" Toxicity. Once I lowered it I started getting yellowing on the bottom leaves. Oh, I flushed before I lowered the MC. Ran 15 gallons of water ph'd to 6.4 through it.
I lowered the MC on the Gorilla Glue also from 5.5 to 5 grams due to "N" tox. She's doing fine with no yellowing. I don't know if the MC is too strong or too weak. If I go up I get "N" Tox. If I go down I get yellowing leaves. I'm puzzled !!!

 

[Pennywise]

Sauga and Shed are sources of good info on MC.

 

[Buds Buddy]

Sauga and Shed are sources of good info on MC.

Yes, it does seem like everyone turns to them for advice with MC. Hoping to hear from them soon and some others who may have a different perspective on things.

 

[PE636]

Remember that overfeeding can be chronic too. Reducing is not necessarily an instant fix. Issues can still show up days after making a change in the right direction.

 

[Buds Buddy]

Remember that overfeeding can be chronic too. Reducing is not necessarily an instant fix. Issues can still show up days after making a change in the right direction.

Yes, it takes a few days to see improvements. Once I flushed & fed a lower dose the N tox went away in a few days. Then the yellowing started. I still think it's pH related.
I'm told not to pH the nutes going in with MC. Not going with that B.S. any longer because I keep having issues. From now on it's getting Ph'd to 6.4.
I also believe it needs some CalMag.

 

[PE636]

Lol.. Ya I ph mine in a fashion. When I started using it I figured out how many drops I had to add to get to ph 6 (coco). Now I just add the pH down without actually testing it. A little less for weaker solutions. Seems forgiving ,but I don't think I'd trust not adjusting at all. The yellowing could have something to with the big flush too possibly?

 

[Buds Buddy]

Oh well, hopefully I'll get some replies throughout the day. I have to figure out what to do about unemployment. Been denied 2 weeks in a row & bills are stacking up & past due. Boss told me the Shared Work Program wouldn't work for his company & therefore he was laying off. I was the last person hired so I got laid off 2 weeks ago. Applied for unemployment but keep getting denied because it says I'm ineligible because my Employer is on the Shared Work Program. At the time I was laid off he wasn't on it. So I have to call Unemployment & my boss in hopes of straightening all this shit out. I'm about to lose everything if something doesn't happen quick.

 

[The Celt]

Just out of curiosity, is the yellowing all in the lowest leaves? And if so, how far below the canopy to the yellowing leaves? Also, can you take a pic of the plants from above?

 

[AdaminCO]

Yes, it takes a few days to see improvements. Once I flushed & fed a lower dose the N tox went away in a few days. Then the yellowing started. I still think it's pH related.
I'm told not to pH the nutes going in with MC. Not going with that B.S. any longer because I keep having issues. From now on it's getting Ph'd to 6.4.
I also believe it needs some CalMag.

I always go in at 6.2. I get they say no need to, but it takes an extra 2 minutes so why not.

 

[Emilya Green]

Sauga and Shed are sources of good info on MC.

and Em.... I see a clear K lockout, caused of course by too much MC.

 

[AdaminCO]

and Em.... I see a clear K lockout, caused of course by too much MC.

Looks like my Glue Cookies did. Looks
Like you just nuked it.

 

[Emilya Green]

Looks like my Glue Cookies did. Looks
Like you just nuked it.

It's funny how so many people following the popular advise are having the same problem... hmmmm.

 

[AdaminCO]

It's funny how so many people following the popular advise are having the same problem... hmmmm.

Mine started showing up at 5g/gal.

 

[AdaminCO]

Mine started showing up at 5g/gal.

Shed said he’s never had to go over 4.5.

 

[Pennywise]

I think people are trying to push MC and ending up with multiple lock outs.

 

[AdaminCO]

I think people are trying to push MC and ending up with multiple lock outs.

It’s easy to get carried away with for sure. I guess that’s the downfall in having an “all in one” nutrient.
I’ll be going back to built soil and compost teas most likely.

 

[Pennywise]

I’ll just start and increase dosage gradually.