Seedlings/Veg - Yellowing drooping With pic

[Centrum]

I have moved recently and my ph meter took a crap so i just went blind for a bit.
I was using a 30/30/30 mix ( Coco/promix/perlite) with some dry ferts mixed in, these pics are what happened.

I dont know if its fungus issue or what, but whole plants have died starting from the bottom to the top.

I used a very weak bleach solution in the soil with the plants that are left in soil/coco/perlite. (Any plants that are left in soil when done the soil mix is being tossed as well.)
Then I did some physan foilar sprays. After the bleach in the soil mix i did see leaves start to point upward again.

I went back to coco and perlite only.

But these symptoms are on all the plants that where in the soil mix so far i haven't seen the same on anything coco, only the what looks like cal/mag and some of the seedlings jiffy pellets dryed out and i think those that dropped and wilted are done for.

Here is the soil coco perlite fert mix pics. I cut the stalk and dont see any of the darkenening that is supposed to come with fusarium.


Now i started some seedlings, in jiffy pellets and finally grabbed 2 ph meters, the water was at ph 8.0 450 ppm from tap.

All kinds of screwy shit could have happened but below is a pic of what im trying to figure out with some of the seedlings drooping. Also these seedlings did not do this till the room they where in hit 93 Degs for a few days. They are now in a 72-75 Deg room and im waiting for the coco to dry up a bit before i add a cal mag treatment.

P.S. The plant in this pic first 3 photos, was 2 ft tall in a red solo cup.

Any ideas Fungus, TO many PH swings with Locks outs on the larger plant?
Seedling cal mag ?
Lost

 

[Centrum]

Another thing i wanted to add, all plants have res tables, I water the table and let them sit an absorb the water.
The seedlings are in the little black flower trays and i did the same with the peat pellets.

Could this be as simple as root rot with PH issues ?

 

[Crazy Composer]

Okiedokie... well, seems to me that the dry ferts need to be explained first... are they organic ferts, synthetics?

Next... very wet soil in small containers, surrounded by very hot temps can cause severe issues. What happens is that after 80F water begins to get too warm to hold enough oxygen for the roots, and if not corrected in time, can cause the roots to literally begin to drown.

Also, my very first thought upon seeing the larger plant was: looks like a plant getting extremely poor lighting. What is the light source?

Also, 8.0 water is quite high to put into a medium that is not alive with microbial action. A healthy, living medium will be able to quickly adjust the pH of nearly any average home water source. And the addition of bleach is not a good idea as far as keeping microbial life in the medium.

 

[Centrum]

After the move they where getting very very weak lighting, some of the new led 4ft fixtures and a 400 watt MH in a 12 x 12 room hung vert.

The ferts or soil ammendments? where stuff you get a farmers market but a whole mix from bat guano to seaweed leonardite kelp ect, I had one cup per 4 cubic feet mix.

From looking at the room it look like major nutrient problems. But the fungus scare is from the bottom to top a plant would wilt in a matter of a week or two, only trying to live where new growth was.


Here are some pics of some clones and seedlings.

I Started my RO water and added 50ppm of cal mag to the barrel ( since its back to coco)
I Just watered the clones with a weak RAW grow complete with trace elements fert 500ppm. The light source is 360 watt of LED and a 600 Watt HPS ( 16 hours of HPS 24hr led) Up until this picture the plants where getting water from the tap ( 8.0 ph ) with a very weak floragrow ( tap 450ppm with nutes 750 ppm).

This drooping was happening before the watering.

Temps are 77 Running a demudifier, humidity is really high 60 -70 at times trying to get it under control.

 

[Crazy Composer]

Did you mix that soil yourself? If so, did you happen to let it sit and "cook" for 30-60 days before using? That's important, and not doing that can often lead to plants that look like yours do right now.

Assuming you didn't let it cook first, what you'd want to do is to ATTACK those containers with compost tea. A massive influx of beneficial bacteria (as you'd have in a proper tea) would begin to neutralize pH issues in the soil, quick. If there's guan is in there, in uncooked soil, your pH will be quite unstable. The tea will introduce the bacteria needed to break down the organics in the soil, and would help balance the pH.

 

[Centrum]

No it was straight into the soil.

I have tons of that soil, but i wont use it anymore.

Now the plants i posted are all coco perlite.

Do they look hungry? the drooping ?


P.S. I order some mycostop to get some beneficials back into the coco, should i make a tea out of that fert stuff i had to add good stuff back in ?

 

[Centrum]

So i watered them and today they still look exactly the same all drooping.

Cant understand whats going on.

 

[Crazy Composer]

Basically, they're starving right now. Whether that be due to lack of food in general, a pH issue which may be locking the nutrients away from the plant, or something like that. They're not eating.

What I'd do: make a basic nute solution of about 1000ppm, pH of 5.8-6.0, FLUSH EM WITH THAT. If there's something in the soil causing troubles, this will chase it out. If there's not enough food in there, this will solve that. Each one needs this flush. Flushing with just plain water is hardly ever a good idea, I have learned. Flushing with just plain water will just cause more starvation. In coco, you really need to watch that pH. Also, I have had terrible grows with certain brands of coco. My plants had similar issues, but I wrangled them out of the issue eventually. Do that flush, watch the pH, they should come out of this.

 

[Centrum]

All the plants you see in post number 4 are clones and seedlings and have only been in coco mix since they started.

I will do some run off measures.




OKAY!!!

Tell me if this makes sense.
The Coco i used i never washed it, because it was always 100ppm or less i got a whole new batch the are measuring 600+ PPMS. ( always trusted it was good coco)
So all the plants in picture 4 the seedlings and the clones are all in this coco mix which if 600PPM+ full of salt.

I dont have enough RO water sitting around to do a HUGE FLUSH. Should i wait till i have created enough RO water to Flush or should i just use TAP water and Flush everything then do a RO water with a 1/3 strength of nutrients ?

 

[Crazy Composer]

It doesn't need to be a huge flush, just enough to run a cup or so out the bottom of each. If that's too much water, then it's up to you what to do about that. You'll know best where to get water. I would NOT use fresh water only for this situation.

 

[Centrum]

Isnt it important to flush till all those nasty salts are out of the coco ?


what i mean by this is, isnt it impossible to overwater the coco.