Under-waterd or over-waterd?

L

Lpt

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Hi all, do these look under-waterd or over-waterd... The reason I cant tell is it's my first run in auto pots I recently installed two new lights (self built f seris) and they got the tempreture too hot for a day or so, the plants were drinking like crazy Could this be the cause?
Today I took them out the pots to add more clay pebbles in the bottom as I was worried I hadn't used enough... The coco/peb mix didn't seem soggy or even that wet at all. Initially I was thinking over watered as the pots seems heavy but now I've had the rootball out I'm leaning back towards under-waterd..

Room temp is now at a steady 27
45/55% RH
canna A/B and calmag fed to about 1600 EC through the res
Res is at a consistant 5.5/6 pH
Any more info needed I can provide.. I've been fastidious with this run and it was all going very well untill I transferd into autopots and using coco for first time too. I've have a few successful runs under my belt and havnt ever over-waterd anything.. this one has stumped me
 

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GBAUTO

GBAUTO

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Another challenge is that your vpd is almost 2.0 at your conditions. That's about double of what I try to attain during veg. My girls get pretty pissed if I run them that hard even in late flower.
 
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Lpt

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GBAUTO said:
Another challenge is that your vpd is almost 2.0 at your conditions. That's about double of what I try to attain during veg. My girls get pretty pissed if I run them that hard even in late flower.
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Vpd?
 
L

Lpt

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TreeFarmerCharlie said:
Vapor Pressure Differential. It's the relation of temperature and humidity.
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So after some reading I figure the best way to lower vpd is to stop the plants working so hard. Ie Lower light intensity? Am I along the right lines? Do you think over intense lights could cause this poor growth?
 
TreeFarmerCharlie

TreeFarmerCharlie

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Lpt said:
So after some reading I figure the best way to lower vpd is to stop the plants working so hard. Ie Lower light intensity? Am I along the right lines? Do you think over intense lights could cause this poor growth?
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I honestly just keep my temp and humidity in check so I haven’t messed around with trying to dial in the VPD. There are some people who know a lot more about it than me. From what I understand it’s more about keeping making sure your humidity is at an acceptable level based on the temperature and higher temperatures require higher RH.
 
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Lpt

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TreeFarmerCharlie said:
I honestly just keep my temp and humidity in check so I haven’t messed around with trying to dial in the VPD. There are some people who know a lot more about it than me. From what I understand it’s more about keeping making sure your humidity is at an acceptable level based on the temperature and higher temperatures require higher RH.
Click to expand...
So I built my first diy LEDs. Cranked them to Max wats and watched the girls fly for about 3 hours. They looked incredible, it was insane. woke in the morning and was like woah ok these are looking like shit tent was 32° they was drooping and shit.. obviously in hindsite i should of started them softly and increased slowly.. but what's thrown me is the symptoms arnt like heat or light stress they are showing over/under watering and that's what's fucking me cos I'm new to autopots and coco.. the reality is I've done a big amature no no and changed too many things at once so now I'm in a situation where I don't have a bleeding clue what to change back for the good.. I tried turning res off and reducing to one light for a day they stayed the same. I'm now trying to water them and reducing light substantially.. pretty gutted this my first one gone south it's early doors and I'm sure I can bring it back but Jesus it stressfull.
 
TreeFarmerCharlie

TreeFarmerCharlie

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Man, I wish I had more ideas, but I just don’t know enough about growing in coco to offer much advice. I don’t know if it’s the flash, but the new growth does look more washed out in color than I’m used to seeing. If you were in soil, I would say that looks like signs of over watering. Have you tried posting about this issue in the hydro forum here? I’m wondering if your question might get some better answers from those who may pay attention to those forums more than this one.
 
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Lpt

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TreeFarmerCharlie said:
Man, I wish I had more ideas, but I just don’t know enough about growing in coco to offer much advice. I don’t know if it’s the flash, but the new growth does look more washed out in color than I’m used to seeing. If you were in soil, I would say that looks like signs of over watering. Have you tried posting about this issue in the hydro forum here? I’m wondering if your question might get some better answers from those who may pay attention to those forums more then this one.
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Ill give that ago later. I've already done two posts on thses bastards.. don't wanna over clog..
 
SheeshM

SheeshM

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Just throwing some ideas out...Maybe try calling the Auto pot company and ask them if they have any ideas? The other thing that came to mind is root issues. They can cause all kinds of symptoms. Is it possible you have some root rot? You could add Hydroguard to your mix without any impact and it will help your roots.
 
TreeFarmerCharlie

TreeFarmerCharlie

Well-Known Member
SheeshM said:
Just throwing some ideas out...Maybe try calling the Auto pot company and ask them if they have any ideas? The other thing that came to mind is root issues. They can cause all kinds of symptoms. Is it possible you have some root rot? You could add Hydroguard to your mix without any impact and it will help your roots.
Click to expand...
Root issues would explain why it looks over watered. I didn’t even think about root rot.
 
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Lpt

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I had them.out the pots yesterday and the root ball is massive filling the entire pot and all extremely healthy looking.. bright white no stains on any of it I was hoping to find it looking all sogy and mushy but it all just looks dryish and healthy.. I will be calling autopots asap after this bank holiday lark is over.. thanks for the ideas!!!
 
L

Lpt

Well-Known Member
I suppose it could be possible roots in the inside of the rootball could be rotting? But the coco would seem wetter I think
 
L

Lpt

Well-Known Member
Can hardly believe these are the same plants to be honest.. pics never did the wilt and yelllowing justice. As do these not show how much better they look and feel .. for future reference they was just fried. Was all about the vpd in the end, light too high they were just exhausted, couple hours reading dimmed lights right down (50%) got tempreture under control and 1.5 days later they seem to have bounced... Not out the woods yet but definitely a step in the right direction cheers guys.. the power of knowledge
@GBAUTO @TreeFarmerCharlie
 

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