Help me identify this please, babies are suffering :'(

[higher self]

To be honest buying the pro line in bulk doesn't cost all that much.
The powder lasts forever in a grow like this

Even less EC will mean a deficiency I'm afraid
And everyone's been commenting on the dryness of my coco lol
Maybe I take the wrong moments to take a photograph.

Yeah my powder last forever as well but I only buy a 3lb bag for $20 along with some cal-nit & i'm good. Are you considering the lime green leaves as a deficiency bc that's from your lights being too strong? Coco shouldnt get that dry no matter what moment you take a picture at.

 

[kushdoctorWolf]

And that would be?
Can you elaborate?

Well idk what you mean by feeding schedule.
I use p1 p2 p3
Phase 0 is lights on til first fertigation ( adding some extra dryback risings the EC )

Phase 1 Slowly ramp up the vwc in the substrate with shots of 1% rather than trying to achieve field capacity at once

Phase 2 exists out of maintenance shots throughout the day to stay on field capacity

Phase 3 is a dryback wth lights out until next day

 

[MickFoster]

Well idk what you mean by feeding schedule.
I use p1 p2 p3
Phase 0 is lights on til first fertigation ( adding some extra dryback risings the EC )

Phase 1 Slowly ramp up the vwc in the substrate with shots of 1% rather than trying to achieve field capacity at once

Phase 2 exists out of maintenance shots throughout the day to stay on field capacity

Phase 3 is a dryback wth lights out until next day

Don't feel bad........I have no idea what you're talking about either.
I feed twice a day to substantial run off.
Carry on with whatever it is you're doing.

 

[curious2garden]

Well idk what you mean by feeding schedule.
I use p1 p2 p3
Phase 0 is lights on til first fertigation ( adding some extra dryback risings the EC )

Phase 1 Slowly ramp up the vwc in the substrate with shots of 1% rather than trying to achieve field capacity at once

Phase 2 exists out of maintenance shots throughout the day to stay on field capacity

Phase 3 is a dryback wth lights out until next day

You appear to be trying to run this grow along laboratory parameters, absolutely nothing wrong with that and sounds interesting. I'll be fascinated to see how your plants do with this, best of luck

 

[Herb & Suds]

May I ask what “quite strong lights are? “
After hearing your schedule my bet is dryback is the cause for leaf damage
If I’m right it will get a lot worse in flower too

 

[tstick]

Much appreciated been putting a lot of effort! I checked the DLI and according to the chart with Co2 enrichment I can have them at 50-55 so that's what I adjusted the lights to.
Would It be better to have them close by the plants and dimmed( like 12 inches away the closest ) or farther away and on higher power?

Or is that just an energy issue in the end?

Well, I'm just throwing this out there, but IF you can dim them to 75% of full power, then I think they would "cruise" a little better and maybe darken up a smidge. In my experience with LEDs, you can back them off the plants pretty far. I think it's because, unlike the Sun outside, the LEDs stay in the same "high noon" position for the day cycle. Sometimes they get a little light stress from such a consistent and cloud-free light source. I don't have any experience with CO2 enrichment so maybe you're already dialed into the proper thing. In any case, I think they look pretty dang good! It's always nice to see a nice, clean, well-managed setup. Best of luck!

 

[Howard Kushman]

It looks like your PH is off.

Your leaves look like this indicating ph issues.
Just my two cents.

Good luck!!

 

[Howard Kushman]

Here is a link for ph issues.

Cannabis pH Management - How to adjust pH in Water and Soil

Brown spots appearing on your lower leaves? See what cannabis leaves look like as a result of pH fluctuations and learn the solution!

www.growweedeasy.com

 

[kushdoctorWolf]

What is Dry Back? Coco Growing - A-Grade Hydroponics

With hydroponics and coco coir there are so many exciting things to measure all the time, one of those things is moisture. Anyone growing in coco knows it loves to be fed hydroponic nutrients and water frequently as its a hydrophilic media, so it needs water to maintain its high CEC value. Coco...

agradehydroponics.com

For all the people that think dry back means drying out lol...
Even between two waterings during the day the substrate dries a little
This is dryback, use it to your advantage

May I ask what “quite strong lights are? “
After hearing your schedule my bet is dryback is the cause for leaf damage
If I’m right it will get a lot worse in flower too

I have 840watts of full spectrum LED's

 

[Herb & Suds]

What is Dry Back? Coco Growing - A-Grade Hydroponics

With hydroponics and coco coir there are so many exciting things to measure all the time, one of those things is moisture. Anyone growing in coco knows it loves to be fed hydroponic nutrients and water frequently as its a hydrophilic media, so it needs water to maintain its high CEC value. Coco...

agradehydroponics.com

For all the people that think dry back means drying out lol...
Even between two waterings during the day the substrate dries a little
This is dryback, use it to your advantage

I have 840watts of full spectrum LED's

Any particular brand or Amazon lotto?
not that there is anything wrong with that ?

 

[kushdoctorWolf]

Here is a link for ph issues.

Cannabis pH Management - How to adjust pH in Water and Soil

Brown spots appearing on your lower leaves? See what cannabis leaves look like as a result of pH fluctuations and learn the solution!

www.growweedeasy.com

Ph could be the problem as before I was only watering once a day and the PH would drift as the plant takes up the nutes.
Now that I'm more consistent with keeping it moist throughout the day I havnt seen much of the problem continue

 

[kushdoctorWolf]

Any particular brand or Amazon lotto?
not that there is anything wrong with that ?

I'm in thailand so everything here you get from China, kind of an amazon lotto( I got two different models hanging for example lol )

They claim to have Samsung chips and osram diodes

 

[kushdoctorWolf]

Yeah my powder last forever as well but I only buy a 3lb bag for $20 along with some cal-nit & i'm good. Are you considering the lime green leaves as a deficiency bc that's from your lights being too strong? Coco shouldnt get that dry no matter what moment you take a picture at.

Completely missed this message, I agree but it's really not that dry.
I've worked on a commercial grow where we REALLY let them dry back, to almost weighing nothing no jokes.

Problem you run into is trying to re saturate the substrate whilst hydrofobic.. and the EC rises scary when it's that dry.

 

[Herb & Suds]

Completely missed this message, I agree but it's really not that dry.
I've worked on a commercial grow where we REALLY let them dry back, to almost weighing nothing no jokes.

Problem you run into is trying to re saturate the substrate whilst hydrofobic.. and the EC rises scary when it's that dry.

In Coco?

 

[kushdoctorWolf]

Well, I'm just throwing this out there, but IF you can dim them to 75% of full power, then I think they would "cruise" a little better and maybe darken up a smidge. In my experience with LEDs, you can back them off the plants pretty far. I think it's because, unlike the Sun outside, the LEDs stay in the same "high noon" position for the day cycle. Sometimes they get a little light stress from such a consistent and cloud-free light source. I don't have any experience with CO2 enrichment so maybe you're already dialed into the proper thing. In any case, I think they look pretty dang good! It's always nice to see a nice, clean, well-managed setup. Best of luck!

Much love for the support, they've been on 75% already.. placed them under 50% rn and will definitely back the lights off a bit as they have grown taller

 

[kushdoctorWolf]

In Coco?

Yes 100%, coco peat and fibre mixed up

 

[kushdoctorWolf]

So basically what I know of this ( the article I posted states the same )
By always giving your plant what she needs she becomes lazy ( always moisture )
By controlled drybacks u cause the osmotic pressure to be in optimal state, you rise the EC which can be used to our advantage and it causes for rapid growth and root expansion as they are getting slightly stressed.
Poke and push these girlies to the limit ( within reasonable terms ) and your harvest should be fruitful.
But who am I only have a bit of experience on the big farm and now started for myself first run

 

[kushdoctorWolf]

Honestly I could use some advice on pruning these babies and prepping them for flower.

To cut or not to cut the side branches.
I only have one room and won't be able to have a light running for clones since I'll be flowering soon.
Any ideas?
Will they survive in another room with 28 degrees celsius and up?

I'll post clearer pics in a bit

 

[curious2garden]

So basically what I know of this ( the article I posted states the same )
By always giving your plant what she needs she becomes lazy ( always moisture )
By controlled drybacks u cause the osmotic pressure to be in optimal state, you rise the EC which can be used to our advantage and it causes for rapid growth and root expansion as they are getting slightly stressed.
Poke and push these girlies to the limit ( within reasonable terms ) and your harvest should be fruitful.
But who am I only have a bit of experience on the big farm and now started for myself first run

How are you controlling your dry back level in the substrate? What osmolar pressure across your membrane are you aiming for and how are you instrumenting that or upon what measurement are you predicating that derivation from?

 

[kushdoctorWolf]

How are you controlling your dry back level in the substrate? What osmolar pressure across your membrane are you aiming for and how are you instrumenting that or upon what measurement are you predicating that derivation from?

Not following you, the osmotic pressure you mean?
I control the dryback simply by feeling the pots weight... a vwc meter would be more adequate.