1 month flowering and now problems

Hello so the soil is ffof in 3 gallon pots . He's been using GH trio at 1/2 strength week six in the feed chart every 4 days . Is this a pH problem or a too much food problem? Hes been checking the pH every watering . He's using well water .
Thanks

When i was using promix, i stuck with the water water feed regimen. No idea what kind of schedule one would keep in something like ffof.
My best guess would be nutrient buildup.

What's in the well water?

Fox farm’s soil is so easy to grow in just don’t add nutrients for 3 1/2 to 4 weeks just water- silica, Epsom salt,recharge etc.The soil will do the all p.h testing crap you shouldn’t have to worry about growing this weed

xtsho said:

What's in the well water?

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Not sure smell like eggs and the ppm is 250.

The plant is hungry for some PK the rest look good.

jakubman said:

Not sure smell like eggs and the ppm is 250.

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So at least sulfur.
Probably want to get the well tested.

I think he's gonna switch to Publix water that comes from the machine

250PPM is pretty high for water. I was in that range and I moved to filtering it so I could keep my EC in a reasonable range. FFOF? Have you tried top-dressing to recharge the medium rather than feeding on top of the already hot soil?

Here's an update . He quit feeding and just giving them water now .

Modern Selections said:

The plant is hungry for some PK the rest look good.

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Tracks with this picture.

LeastExpectedGrower said:

Tracks with this picture.

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He was feeding with GH trio and it seems like that's when issues started happening. But no more well water

jakubman said:

He was feeding with GH trio and it seems like that's when issues started happening. But no more well water

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High EC well water can often lock-out other nutrients, causing deficiencies. IIRC, FFOF loses its 'charge' by about 4 weeks into flower (which also tends to be a challenging time no matter what as the plants really have switched into their 'flowering needs' for nutrients by then. So this may be a 'perfect storm' of things coming together.

...I wouldn't stop feeding altogether though, with a switch of water, I'd start working on feeding again and dial that in. I didn't love Trio...it was fussy and leaves too much chance for variation in what you're doing...I moved to GH Maxi and it's been easier to dial things in.

Update . Looks like one is getting burnt leaves. The light is a the right distance. I'm thinking it's the well water .

What y'all think about city water ? Just let sit over night to dissipate the chlorine?

Thanks !

A couple of observations from an amateur. Take it with a grain of salt. These last couple of pictures are telling me a possible two things. Those are either nutrient lockout, or heat /light stress. Reason I say possible light stress is because the under growth looks pretty good still. seems like all your problems are on the upper branches. On the other hand (could be the photo) but your leaves are looking super dark green to me which can indicate too much nitrogen, which might tell me you might be too heavy on the nutes in general and salts are creeping up in your soil. So one of two things Lockout or light burn. Again take that with a grain of salt but I've had both and they both look very similar and a lot like yours.

i would take some of that bottled water and check ph/ec. then slowly water until you get some good run off. check that run off, I wager it shows rightly high EC and low PH. If so i would flush them out proper, then start back feeding with 1/3 to half nutes. With run off tests you will at least have some idea how your root zone looks. Or look up how to do a slurry test, that will give you the same info. Knowing is half the battle

250 ppm is high for base level water before mixing nutrients. A the issue becomes high PPM in water is heavy metals which hurt the overall usability. Even if you’re careful to only add to 700-1000ppm that base water is still heavy.

75-150ppm water if it’s well or tap in my experience. Anything higher is risky. Obviously lower is awesome I just can’t find lower than 75 from tap or well. Only clear caught rain in good catches.

jakubman said:

Update . Looks like one is getting burnt leaves. The light is a the right distance. I'm thinking it's the well water .

What y'all think about city water ? Just let sit over night to dissipate the chlorine?

Thanks !

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No need to dissipate chlorine. Even if you do you can’t rid it of the chloramine. Just use it.

Thanks a bunch ! Next go around he's gonna switch the water to something better. Well water is some nasty stuff haha !

jakubman said:

Thanks a bunch ! Next go around he's gonna switch the water to something better. Well water is some nasty stuff haha !

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Ya, "he" should get that looked at.