Droopy plant dry leaves in coco. Not looking happy.

FatBoyVik said:

3 gallon fabric pot with coco and perlite. I have been feeding canna coco and rhizotonic and giving between 2 and 1 litres.

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That doesn't seem substantial enough for the pot size you have. You need a couple litres in waste/runoff in a pot that size, every watering or feeding.

FatBoyVik said:

Ec has been 1.2

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Keep your watering solution the same at 1.2 EC and check the runoff EC next watering, I suspect it'll be high.
In the event it is, you can easily leach the salts out using a mild solution, don't use straight water.

Giving one to two liters is just teasing the plant

Is the pot light when you water ? Have you used a wood skewer to see how close to the top of the medium is wet ?

Without watering to a run off of ~1L it is possible you have a build up issue.

Put the plant/bag on two sticks across a 5 gallon pail and slowly run at least two gallons of just water through.

Let it drain a bit and then "feed" with another gallon.

And start to water to run off in the future

This is not dangerous in any way and you may see an improvement in a few days...

Cheers

FatBoyVik said:

OK I will continue to water daily and get temps up to 25 and see if there are improvements. Thanks guys I'll report back if nothing changes

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At 70f that early in the grow, you will probably start experiencing magnesium deficiencies as well. Those temps are fine the last week or two.

therron said:

At 70f that early in the grow, you will probably start experiencing magnesium deficiencies as well. Those temps are fine the last week or two.

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Yeah I am realising the combo of LED and coco I need temps in 25C at least. From now It should be ok I am just waiting for some AC infinity heaters to come through and it shouldn't be a problem again.

chuckeye said:

Giving one to two liters is just teasing the plant

Is the pot light when you water ? Have you used a wood skewer to see how close to the top of the medium is wet ?

Without watering to a run off of ~1L it is possible you have a build up issue.

Put the plant/bag on two sticks across a 5 gallon pail and slowly run at least two gallons of just water through.

Let it drain a bit and then "feed" with another gallon.

And start to water to run off in the future

This is not dangerous in any way and you may see an improvement in a few days...

Cheers

Click to expand...

Yeah its odd I think it was still heavy the next day so it wasn't drinking properly but from now I will give more substantial watering/feedings as they seem hungry under the LED.

steve870 said:

growing with coco is like growing with rock wool. you need to treat it as hydro. Everytime you water you should get 25% runoff and measure runoff ec. It shouldn't be much higher than the input ec. If you let it dry out. chances are your ec is the coco is way too high. Flush it once with straight water until runoff and measure ec. flush again and Get it under 1.5-2

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Ideally runoff ec should be the same as input ec, but i think this is extremely hard to do with a led grow which has higher nutrient needs (in concentration, not absolute amount: stronger juice for the less thirsty plant).

A better approach might be managing and balancing ec in and out. We go quite high in mid flower since we push light quite hard, we have runoff around 2.5 with no real ill plant effects. As we approach ec out 3 we would go with a lower 1ish numbers of ec in order to bring it down but not finishing flush levels, with ec in as close as possible to 0.

Its a sort of balancing act, where you have to look ahead a bit. Its easy to get to a point where your mid flower EC gets so high, that its real hard to bring it down low for finishing with a nice fade.
To me it seems like the major predictor of how "nutey" your bud tastes is how it went into senescence and got fall like colors: if you get yellow purple in the top layer or two of leaves your usually good not matter what ec you have in the pot: your plant is still self cannibalizing a bit which gets rid of the bad taste.

In my experience it's probably the led, I would start a plant like that under probably 50w - 100w gradually rising, I've never been able to get most of my LEDs to full power without the plants freaking out.

Got a new 320w led it made my clone droop I just flipped. Dimmed and its perking again. I just know this clone well. It looked kind of like it does when I accidently cause a drought. My other 150w lights are full power they love it. Getting to know a new brand/more power.

I think praying too hard indeed means attempt to deflect light like one said which I didnt hear often. Raised light and theyre growing normal again. On the 150w light. My 320 she was just getting outright fried Ive seen it, it will grow discolored panels on leaf and look droopy and sad.

Just a thought if light is the issue here. Im newer grower and its been a learning curve.

Good points, I must admit this one cant dim and they are sitting on a platform so they are slightly closer to the light. I have had nothing but problems with LED and in particular this light (as its always in the veg tent) Thinking about it, when I took out a batch of Jelly doughnutz and took them to the flower tent which had MH they did look alot happier. Perhaps I will switch the light out and figure a way to use this Telos for flower later on down the line.

Just a FWIW !
I'm on day 22 of my first grow with a Phlizon 640w LED, long time die hard HID user

The first germinated seed to emerge in a solo cup was under 9,000 lux, she was looking stretchy....

Two days later I raised the power to 13,000 lux and all six plants were growing somewhat normally with much less stretch than I'm used to !

Six days later I went to 13,000 lux and six days later to 26786 lux.

Three days later I went down to 24,000 because I have Never seen such short seedlings.

Topping and training was going to require magnifying glasses

On day 17 I transplanted four plants to 5 gallon pails with GroBuckets, three in ProMix HP, one with 5/1 coco/perlite.

The remaining two into 2 1/2 Imperial gallon fabric pots with 4/1 coco/perlite, 30,000 lux. Feed is Mega Crop one part...

Under a 600w MH/HPS with only three power settings I would put my light at 30" and 50% power and let the plants grow up to it...

Now with LED And an infinite power knob I can pay much more attention and dial it in closer to ideal.

One grower I follow who does good work starts his seedlings at 550 par

Right now I'm at 450 par at plant top height (using a conversion factor of .015 x lux) at 28"....

I almost wish for the vertical growth I was getting with HID

These are all sativa/sativa dominant strains and the reduction in vertical growth will be Welcome down the road !

Temp at plant height is 78, rh with a humidifier is ~50%. Best I can do with my budget set up...

Middle bottom is a five days younger Hawaiian Snow. The fabric/coco girls seem to be taking a little longer to get with the program



Topping/training will commence tonight !

Maui Wowie



Acapulco Gold



I have the Photone app and a PPFD meter on my phone but I find I get the most accurate readings with a Lux Meter !

Not sure if I will bother with a dedicated lux meter, this is a budget grow after all

If you have the ability to fine tune your environment further I recommend looking at VPD, choose a chart that allows you to enter the leaf temperature /room temperature and rh...

Cheers