SHXT! What is going on? Early veg probs!

How's it guys. Second grow here. Messed up the first one in flower but that's a different post. Just trying to grow some good vibes. Since the first grows mess up I've been taking the "keep it simple stupid" approach on this one.

FEED: JACK'S 321(jacks hydro, cal nitty and Epsom). Went 70% strength on the first feed which was just last week.
Pt A 2.5
Pt B 1.6
Epsom 0.84. per gallon.
Tribus Original at 8ml
MEDIUMromix MP Organiks w/Mycorrhizae
LIGHTS: Electric Sky 300 LED dimmed to 70% brought it down back down to 50% thinking it may be LIGHT Burn.
RO water
Ph 6.2
Gave them second watering yesterday after 6 days of Jack's at 33% strength with Recharge and Tribus. Ph 6.1 Going to give it another day to see if it get worse. Need help from the experts and homies to identify and rectify this problemo. Any help is much appreciated.

Your problem is definitely consistent...

I run Jack's as well, but in 100% coco...with that being said, be sure you're mixing your feed correctly (there's an order in mixing), be sure of your pH (consider you're using peat and coco combined).

If I had to bet, I'd say it's a pH issue...largely because what you're feeding has everything in it needed by the plant...it's just that your plant isn't getting it.

Good luck friend.

CannaCountry said:

Your problem is definitely consistent...

I run Jack's as well, but in 100% coco...with that being said, be sure you're mixing your feed correctly (there's an order in mixing), be sure of your pH (consider you're using peat and coco combined).

If I had to bet, I'd say it's a pH issue...largely because what you're feeding has everything in it needed by the plant...it's just that your plant isn't getting it.

Good luck friend.

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Thank you for the response. I ph at 6.1 and 6.2 thinking it may be a safe buffer. Not sure if should I ph lower at 5.8 or higher than 6.2. Run off came out at 6.2.

Maybe the plants want it higher being the majority of your medium is peat...I really couldn't say. You might consider watering one at a higher pH, one at a lower pH and leave another at what you've been pH'ing at and see which one improves...then make the appropriate change. Seems a lot of people run into issues with these hybrid mixes (peat w/ coco). Maybe someone will chime in with some experience using them. Good luck friend.

Much appreciated Cannacountry.

This ^^^
But I think you are wrong about your runoff
I can't imagine running it through a peat base and it staying the same
Definitely try raising it to 7 a couple weeks

Herb & Suds said:

This ^^^
But I think you are wrong about your runoff
I can't imagine running it through a peat base and it staying the same
Definitely try raising it to 7 a couple weeks

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I always test the run off. So I'm not sure. Ph meter may be off calibration but I don't think so. using two just to be sure. Been extra with ph as my last grow was messed up from a faulty ph meter.

Efbespn said:

brought it down back down to 50% thinking it may be LIGHT Burn.

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its good to reduce light if your plant doesnt do well but its not lightburn. do you see how the small fresh growth that is actually under the canopy in the middle of the plant in pic #3 already displays the same symptoms?
Im not familiar with your soil but if its peat based you may aim for pH 6.5, no less than pH 6.3 and not higher than pH 6.8 at the end of flowering.
peat usually is quite acidic... can you do a soil probe? collect some in a glass fill with handwarm RO water (ratio 1 part earth 2 parts water), shake, let stay, filter dirt out, measure pH & EC.
if its too acidic youll have to counter by going even more alkaline like Herb & Suds suggested.

Efbespn said:

Ph meter may be off calibration but I don't think so. using two just to be sure. Been extra with ph as my last grow was messed up from a faulty ph meter.

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thats a known problem, I have 4 different with 3 different calibration solutions. it can be a mess sometimes...