Why has this plant went from healthy and vigorous to looking like it's going to die in just one day?

My plant is about 5 weeks from seed(vegging)
FFOF soil.
630w de cmh
Was up potted about a week and a half ago into 3gal.
Only adding small amounts of cal mag and a silica supplement

This plant has been nothing but perkyness and praying. I noticed it began to start drooping yesterday morning, 2 and a half days after being watered, lifted the pot, it felt kind of light so I watered it lastnight. Since then it's gotten worse.
If I were overwatering though you'd think it would've shown the day of or after the day that I had watered it, about 4 days ago.
I did the down the branches the day that it was still healthy, about 12 hours later it went down hill.

Could it be humidity stress? The night that it decided to start drooping I left my humidifiers on to see what range they would keep me in and it got between 64% to 71% at lights on, I then noticed that morning before lights went out that it began to droop. That dark period rh got up to 81% with my humidifiers off. I also had my DeHu off because the dark hours rh was manageable, upper 60s.
So rh got too high, but since then, about 20 hours or so, it hasn't gotten above 64% and the plant is looking the worst it has yet, if it was humidity shouldn't it start looking better with rh back down?
I appreciate any help, 5 weeks invested in this plant and it has great structure and nice and branch. I'd really hate for it to die.

I'll add that it was flourishing under basically the same exact conditions, besides that rh spike. I've had my rh at 65% before for this plant and it was happy as could be. Now it seems to be giving up at life overnight, what is going on??

Not sure what is wrong. A plant that sir should go a few weeks without needing nutes in ocean forest. Not sure why you are adding cal mag or how much a little is and in soil there is little need for silica.

It may be salt stress. I would quit adding supplements and let it dry out real good before watering again.

The new growth is still looking vigorous. Too much calcium can clog the roots. A few tips are curled down like a cal deficiency. But you have plenty of calcium.

What is in your source water?

MichiganMedGrower said:

Not sure what is wrong. A plant that sir should go a few weeks without needing nutes in ocean forest. Not sure why you are adding cal mag or how much a little is and in soil there is little need for silica.

It may be salt stress. I would quit adding supplements and let it dry out real good before watering again.

The new growth is still looking vigorous. Too much calcium can clog the roots. A few tips are curled down like a cal deficiency. But you have plenty of calcium.

What is in your source water?

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My water is r.o. Filtered from my tap which puts out around 400ppm but none the less the water is purified.
I didn't know that cal mag would not be needed at this point, just always read that you need to add it if you're using r.o. Im still a rookie as far as growing goes, just started last April. Got one indoor grow under my belt.

Going back to about week 2 for the plant, when I first added anything, I've given .5ml/gal of cal mag+ twice, 1ml/gal once, and 3ml/gal yesterday. With atleast one r.o. watering between each feeding. Silica started the same time and is given 1ml/gal each time cal mag+ is given. My runoff ppm started around 1,100 a few weeks ago and is now down to, I believe 425 as of yesterday. My ppm of the water yesterday was 149.
Cal mag+ jug says anywhere from 3 to 5ml/gal and silica says 1.25-2.5ml/gal for recommended dosage.

An update on the plant, it's back to basically looking normal, 12 hours from when those pics were taken..
I poked my moisture reader in there and it read about 3/4 the way to dry. I'm thinking the drainage is a bit poor and just being up potted not many of the roots have made it to the edge and bottom of the pot, where the dirt would actually be moist and now maybe they're finding their way there.

But now while I have you here there's some weird coloring going on with some of my leaves. Looks blotchy/speckled, kind of a blackish colored spots. I'll put up some pics

In the first pic you can see two leaf blades have the strange look but other blades on the same leaf look normal. The second pic is kind of the same thing except half of the one blade looks funky but the other half of the blade looks normal.

For the most part these are the only two leaves like that. A couple others have the weird coloring just starting.

In the third pic, on the left side of the plant is a pretty good look at one of those claws you mentioned.

MichiganMedGrower said:

Not sure what is wrong. A plant that sir should go a few weeks without needing nutes in ocean forest. Not sure why you are adding cal mag or how much a little is and in soil there is little need for silica.

It may be salt stress. I would quit adding supplements and let it dry out real good before watering again.

The new growth is still looking vigorous. Too much calcium can clog the roots. A few tips are curled down like a cal deficiency. But you have plenty of calcium.

What is in your source water?

Click to expand...

I also notice a bit of yellowing on leaf tips. Which as far as everything I've read means a bit too much nutes. I'm guessing that's gotta be from the ocean forest though which it'll have to just ride it out, because besides yesterday, when I've given the cal mag and silica my ppm's have only been anywhere from 50-90, surely that wouldnt cause burn right?

MichiganMedGrower said:

Not sure what is wrong. A plant that sir should go a few weeks without needing nutes in ocean forest. Not sure why you are adding cal mag or how much a little is and in soil there is little need for silica.

It may be salt stress. I would quit adding supplements and let it dry out real good before watering again.

The new growth is still looking vigorous. Too much calcium can clog the roots. A few tips are curled down like a cal deficiency. But you have plenty of calcium.

What is in your source water?

Click to expand...

Also I just looked again and noticed many more leafs with that strange blotchy coloring coming in

The recomended ppm for source water is 150 ppm in most guides.

I see more problems when using ro water because it is ph unstable. No alkalinity. That's what the calcium in the water does. Balance out all the acidic stuff like peat and nutrients.

I suggest no nutes and water with half tap and half ro mixed. Should read about 200 ppm.

Also don't adjust ph. Let the pots reset so to speak and be patient and wait for a positive change.

In a few days the plants should look better and you can see better what to do next.

I have to go work the garden. Lights are coming on.

You added very little. But the 3 ml dose may have been enough to stress them if nutes are left in the soil still.

I will say again. I add only 100-150 ppm 8.0 ph well water for up to 5 weeks veg in ocean forest. Plenty of nutes in it.

I up pot when they need so they never get hungry.

I'd stop the calmag and silica. you're in fox farm, dont over think it. begin feeding with organic fertilizer now per instructions on the package, nothing more. water when you know its dry, not kinda.

just looks thirsty to me

Thanks for the advice guys. My tap runs a little over 8ph and I've been ph'ing to around 6 from the start. @MichiganMedGrower Your suggestion is to leave the ph around 8? That's counterdictive to everything I've read about ph'ing water but I've seen some of your plants and they look real nice. I'll start running half tap water and half r.o. and see how that does. It'll help save on r.o. filters too.
@chemphlegm I'll look into organic ferts. Any brands that you personally recommend? And also do you see anything wrong with the more recent pics I posted about the discolored leaves?

I appreciate this advice guys.

How are you mixing the nutrients? What goes in first/last?

SPLFreak808 said:

How are you mixing the nutrients? What goes in first/last?

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My cal mag I usually put in first, but no specific order. Now that you ask that though it seems like I read something once about a specific order that silica has to be put in

SPLFreak808 said:

How are you mixing the nutrients? What goes in first/last?

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I shake the jugs well though after adding each nute one by one, if that makes a difference. From the sounds of it regardless though I'll be switching to organic nutes. The nutes I have all say they work with soil but from everything I've learned and still learning I believe the nutes I have are more so meant for hydro grows

NugHeuser said:

Thanks for the advice guys. My tap runs a little over 8ph and I've been ph'ing to around 6 from the start. @MichiganMedGrower Your suggestion is to leave the ph around 8? That's counterdictive to everything I've read about ph'ing water but I've seen some of your plants and they look real nice. I'll start running half tap water and half r.o. and see how that does. It'll help save on r.o. filters too.
@chemphlegm I'll look into organic ferts. Any brands that you personally recommend? And also do you see anything wrong with the more recent pics I posted about the discolored leaves?

I appreciate this advice guys.

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Organicare dry fertilizer, the end
follow my advice and there is never a deficiency to worry over. your plants look fine