plants keep dying on me

Gman1887 · Feb 24, 2020

I need help here, Been growing a fair while but have hit a brick wall. I think is my water supply and have sent it off for analysis. Anyone having this issue?

Clstr8 · Feb 24, 2020

need info on lights, soil or nutrients being used.

jdog127 · Feb 24, 2020

Yeah we need a run down of your entire set up to be able to help. whats you're feeding schedule how often you're feeding what is your ppm what is your PH. What's your humidity what's your temperatures. What is your grow medium. Pictures are also a must.

Gman1887 · Feb 24, 2020

Ok, I am presently in autopots with coco/perlite 70/30. I have 10x 600 HPS lights , temps are perfect and so is humidity
Ive just gone over to R/O water using Ferro osmosis coco nutes as I think its my water is not good. When they where pips I gave them to another grower to raise. We used my water to avoid any future shocks. After 3 weeks or so he thought things weren't right so he used his water on half. His water plants left my water plants behind so we thought we had found the problem.
We then brought the best of the plants to my setup and imported his water.. for a week or so all looked good then they died off and now I don't know.
He carried on with some of this batch and he doesn't think there going to make it.

Gman1887 · Feb 24, 2020

My feed levels are Ec - .8 and ph is 5.8

steve870 · Feb 24, 2020

how do they die off? they whilting?

Gman1887 · Feb 25, 2020

They produce green shoots but cannot hold on to the colour. so fan leaves are tiger stripes then die off completely
I'll take some pics and posts them later today

steve870 · Feb 25, 2020

i would check my nutes for a micro element thats missing or that is there in small quantity.Yes Pictures would help

Gman1887 · Feb 25, 2020

Ok here's are some pics. This is typical of my last 4 grow attempts. I have tried all types of nutrients. The only one that nearly does it is Formulex. But as soon as I go on to A and B feeds this is what happens, The best reasoning I have come up with is that my water is causing it. I haven't tried a grow with RO and Specific nutrients from start yet. That will be my next move.

spek9 · Feb 25, 2020

Please, for the love of all things good, when you post a hundred pictures, select the thumbnail option so we don't have to scroll for an hour to get past them

xtsho · Feb 25, 2020

It looks like green algae growing on the perlite. If it is then you are severely overwatering those plants. In order for algae to grow you would have to keep that plant constantly soaked which can lead to root issues, rot, and dead plants.

Gman1887 · Feb 25, 2020

These plants have been in veg for 6 weeks or more. I’m using Autopot so with constant air lines. The reason they’re showing some algae is because they have lost most of their canopy. The coco mix is not saturated

70's natureboy · Feb 25, 2020

As I was scroling past all that green, all I could think of was over-watered plants. Lights are good, nutes and ph are perfect, It has to be the autopots that I know nothing about. I didn't notice the temps, possible cold?

edit I'm assuming the nutes are perfect. I have no idea how complete they are.

spek9 · Feb 25, 2020

70's natureboy said:
I didn't notice the temps, possible cold?

I'd have to say no regarding cold temps being the problem. Typically, you'd see the stems taking on a dark colour (purple-redish) if temps are cold.

I don't see any indication of that within the pics posted by OP.

Gman1887 · Feb 25, 2020

Thanks for replying. Didn’t mean to post all those pics. Temps are perfect I will shut off feed supply for a couple of days see if they respond. Problem is always leaves don’t hold onto their colour. New growth is fine.

Corso312 · Feb 25, 2020

Looks like a standard potassium defeciency to me.

Have you tried soil instead of Coco? It's far more forgiving and you don't have to worry about the pH or licking out NPK .

Gman1887 · Feb 26, 2020

Im looking into that now. I’m seriously thinking about upgrading pot size to 25L and growing in Sohum living soil. Any one doing this?

Never Known · May 2, 2020

xtsho said:
It looks like green algae growing on the perlite. If it is then you are severely overwatering those plants. In order for algae to grow you would have to keep that plant constantly soaked which can lead to root issues, rot, and dead plants.

Sorry to but in but don’t for coco don’t you have to keep the medium damp? I’ve been watering everyday. Don’t want to run into root problems later on though.

Never Known · May 2, 2020

spek9 said:
I'd have to say no regarding cold temps being the problem. Typically, you'd see the stems taking on a dark colour (purple-redish) if temps are cold.

I don't see any indication of that within the pics posted by OP.

Is there any way to come back from purple stems and branches?

Dontjudgeme · May 2, 2020

Gman1887 said:
I need help here, Been growing a fair while but have hit a brick wall. I think is my water supply and have sent it off for analysis. Anyone having this issue?

You’re growing in coco and using RO water with no calmag. Double whammy.

plants keep dying on me

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