)vernight DEATH?!?!? 1 plant died among 20+sisters

[bk78]

how do you keep those from molding...what RH?

I have one of the biggest humidifiers I could find running 24/7 and only get up to 40% this time of year.

 

[JohnDee]

I have one of the biggest humidifiers I could find running 24/7 and only get up to 40% this time of year.

I grew in Iowa and had to deal with dry winter air. Now on the coast...can hear the breakers crash during a storm. So I'm fighting the opposite fight.

Sounds like you need to add another humidifier.
JD

 

[bk78]

I grew in Iowa and had to deal with dry winter air. Now on the coast...can hear the breakers crash during a storm. So I'm fighting the opposite fight.

Sounds like you need to add another humidifier.
JD

After this current run some changes to the flower room will be done. Going with a fully sealed and adding co2 so I think that will be in check soon.

 

[Keeprollinup]

Sorry for your loss m8 been there lost 22oz to bud rot was fine one-day then rotted the next so quickly.

 

[CallingDrGrrentumb]

100% the roots have drowned, overwatered no doubt.
Pull the plant out and confirm by inspecting and smelling what was the root ball

Roots were ok. No bad smells, maybe a little sweet. Only anomaly was the first inch or so of stem was peeling... They were transplanted about 3 weeks ago and i buried them a little deeper so the first couple inches of stem were buried
The part of the stem that was covered by soil was the section that was peeling (the skin/bark separated from the trunk), looked like it was wet for too long... Maybe that's what caused the plants demise; not that the roots drowned but that the base of the stem got overwatered and stopped transporting water?

She definetly showed all the symptoms of overwatering, but i figured with the kids in using, it could stay saturated and still have enough air for the roots (5g fabric pot with 50/50 coco/perlite)

The other 20+ are just fine, and still doing good, it was just 1 that went weird. Not a big loss but definitely would be nice to diagnose and about in the future

 

[CallingDrGrrentumb]

@OP
just go ahead and sniff at the rootball. People here can't help if you won't comply giving out additional information. It's also relevant if you grow mineralic or organic. For example in compost there's literarily millions of different micriobiota int here, but some of them don't like living under water. Those that like such a milieu - anaerobe ones - if they get the upper hand in your substrate they'll release toxins which your plant will suck in and die swiftly. They smell like sulphur - like a toilette.
Now if there's a guy that feeds mineralic plus added H2O2 - that would be an entire different setup.

If you read the whole thread you would see i did already mention the results of pulling the root ball the roots looked ok (dirty but basically white, wet but mot slimy) and no smell (maybe a little sweet if anything)

I been feeding AN connoisseur base, kelp extract, humic, and silica (at minimum recommended)
And the medium is about 50/50 coco/perlite with some amendments (compost, azomite, and something for pH i think), its a local bagged soil company. First time i used it. Usually mixed my own peat/perlite super soil but decided to try coco for this go

 

[CallingDrGrrentumb]

3 gallon bags, top feed,drain to waste and yes i always feed with run off I’m doing 6 1 minuet feeds per day. I never worry about bud rot as I don’t have enough humidity for it 3/4 of the year.

O damn so if there is runoff after a minute that means the soil stays pretty well saturated. That's about how i was watering these until this one died
How strange....
Maybe it was something in the compost in the bagged soil i was using. Gonna have to go back to mixing my own

 

[Justkickinit420]

This is what works for me, 100000000000000000000000000000000000000000000000000000000 ways to grow, choose 1
I put my soil or coco in a tote, and add nutrients same strength as clones or smaller pot was getting.
The key here is a muddy medium, mix it until there is even moister in the tote. If you have standing water in bottom of tote add more medium and mix again.
Put enough soil in pot so the top of the pot, or clone, is going to be @ the top of the new soil level.
Then backfill the sides and work the soil in but don’t pack to tightly. What I do is drop the pot a few times on the floor from few inches up, this lets the medium settle which will help prevent the “holes” that can be associated w watering fresh medium @ higher pressures.
Wait for the medium to dry out 70-80% and water til run off(best to use lower pressure over higher) and let them dry the same and so on.
About week 7 when lights start to get diaper back and temps start to lower as well as humidity you’ll notice less n less waterings, this is great just don’t get to anxious to water, this is where the oils really come into play.
Gotta let them dry a bit to get the nice dense fatt colas that you can stick to a mirror and leave it

 

[Innob]

How do the leaves feel? Or how did they feel when you first noticed?
I don't believe this is overwatering, from that picture it doesn't look like it to me.

Is that yellowing on the bottom and the middle on the other plants too?

Do you have pH strips? Can you take a slurry test of your coco?

 

[Buds N Brew]

O damn so if there is runoff after a minute that means the soil stays pretty well saturated. That's about how i was watering these until this one died
How strange....
Maybe it was something in the compost in the bagged soil i was using. Gonna have to go back to mixing my own

I think your headed down the right path here. My guess is the combination of compost in the soil and full doses of nutrients created a double whammy for that plant (and possibly others if left unchecked). The compost altered the properties of the coco to the point where it's drainage was adversely affected although 50% perlite should have prevented this. But, the hot compost combined with full nutrient doses may be the real culprit. Plants draw in water through osmosis. Salts buildup in the medium can cause what is essentially reverse osmosis, and draw water out of the plant. That combination of inadequately aerated medium and excess salts/nutrients could have been the demise of this plant. I would use pure, rinsed and buffered coco, mixed with 20 to 30% perlite (no added compost, soil or other organic material) and then supply all the plant's nutrients via your AN nutrient package. Keep your PH around 5.8 to 6 and water to at least 20% runoff.

 

[P10p]

Just pulled up the root ball, the roots looked ok (not great, but not slimy) and no smell
But can tell 100% that she got overwatered.
Just don't know how.... It's 5gal fabric pots w.50/50 coco/perlite mix.
And the 20 other plants that are getting the same amount of water (and everything else) are doing just fine. Iunno...
But like i mentioned, the pots were pretty dmn heavy with water, if it was my usual peat mix i would've worried, but I thought coco was a little different and you want a lot of water running thru there...

So I've let everything sit for a day (no watering for 24hr) and the pots are about 2/3-1/2 as heavy, definetly dried out a bit

Any suggestions on how to water coco from here out?
Thinking i will water 1x/day, in the morning, until+/-10% runoff. Then let dry for 24hrs. That will be about 1 gal per pot (what i was doing when this one died is 1L 3x/day, so about the same amount of h2o, but spread out). I think this strategy will provide nutes and give enough time in between to dry...
We'll see. Keep u posted

Maybe your mix wasnt properly mixed and this pot had to much compost holding water?