Deficiency/Toxicity/Lockout? I can't figure it out.

Dr.fillDAblunt420

Dr.fillDAblunt420

Active Member
Hey everyone. I have been dealing with some plant issues recently and I just can't seem to figure out what's going on. The most recent SAP analysis showed I was low in Fe, Mn, Zn.
My vegetative room has (50) Jungle T5 48" lights.
I use organic living soil with a coco base.
CO2- 600ppm
400-500 PAR
Water Temp - 68*
Plant Temp - 79*-82*
Ambient Temp - 80*-82*

At first, I thought there was something wrong with my water. I had my water tested and sure enough, it had some bacteria colonizing in it. However, the testing facility was not able to tell me what specific bacteria it was. I cleaned all my res' and irrigation lines. Waited 1 week and tested the water again and came back clean. So I'm thinking I can start to rule out the water issue, but something in my gut says it can still be something in the water. I do have another water test submitted just to check once again.

I use CaMg every water
Current pH: 6.5 (sometimes it creeps higher to 6.8-6.9 halfway through watering and I have to readjust it.)
After about 4 weeks the plants start to exhibit signs of deficiency/stress. (shown in pics)
I amend my raised beds with BioLive.
I have grown all these strains for YEARS without any issues.

ISSUES:
-The new leaves start to get small
-Yellow/pale
-Eventual purpling
-Blistered look. (The margins in between the veins of the leaves start to literally look like they push out like a blister.)

The odd thing is once I transfer plants to my Bloom room they seem to heal and get better. In my head, they start to recover because they have an abundance of food and can start to eat.

My Bloom room has 90 DE Phantom lights. Grown in 60 gallon No-till Raised Beds.
CO2 - 900 PPM
750-900 PAR
Water Temp - 68*
Plant Temp - 79*-82*
Ambient Temp - 80*-82*

I haven't been feeding the plants anything extra besides what's in the soil. Could the plants be eating so much food it's draining my soil of nutrients within 4 weeks and I need to feed? Do I need to do anything "special" with my fertilizer program and/or pH when using LED's?

PICTURES: The plants in pots are in VEG and the plants in the beds are in BLOOM.

Upon request, I can give any additional info/pics.
Any input would be greatly appreciated.
 

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Killaki

Killaki

Well-Known Member
Dr.fillDAblunt420 said:
Hey everyone. I have been dealing with some plant issues recently and I just can't seem to figure out what's going on. The most recent SAP analysis showed I was low in Fe, Mn, Zn.
My vegetative room has (50) Jungle T5 48" lights.
I use organic living soil with a coco base.
CO2- 600ppm
400-500 PAR
Water Temp - 68*
Plant Temp - 79*-82*
Ambient Temp - 80*-82*

At first, I thought there was something wrong with my water. I had my water tested and sure enough, it had some bacteria colonizing in it. However, the testing facility was not able to tell me what specific bacteria it was. I cleaned all my res' and irrigation lines. Waited 1 week and tested the water again and came back clean. So I'm thinking I can start to rule out the water issue, but something in my gut says it can still be something in the water. I do have another water test submitted just to check once again.

I use CaMg every water
Current pH: 6.5 (sometimes it creeps higher to 6.8-6.9 halfway through watering and I have to readjust it.)
After about 4 weeks the plants start to exhibit signs of deficiency/stress. (shown in pics)
I amend my raised beds with BioLive.
I have grown all these strains for YEARS without any issues.

ISSUES:
-The new leaves start to get small
-Yellow/pale
-Eventual purpling
-Blistered look. (The margins in between the veins of the leaves start to literally look like they push out like a blister.)

The odd thing is once I transfer plants to my Bloom room they seem to heal and get better. In my head, they start to recover because they have an abundance of food and can start to eat.

My Bloom room has 90 DE Phantom lights. Grown in 60 gallon No-till Raised Beds.
CO2 - 900 PPM
750-900 PAR
Water Temp - 68*
Plant Temp - 79*-82*
Ambient Temp - 80*-82*

I haven't been feeding the plants anything extra besides what's in the soil. Could the plants be eating so much food it's draining my soil of nutrients within 4 weeks and I need to feed? Do I need to do anything "special" with my fertilizer program and/or pH when using LED's?

PICTURES: The plants in pots are in VEG and the plants in the beds are in BLOOM.

Upon request, I can give any additional info/pics.
Any input would be greatly appreciated.
Click to expand...
You answered your own question but don't even realize. I had a similar issue with one of my strains and was getting frustrated as fuck. Long story short... It was my new "better" LED lights. I had it in reverse though, things getting blasted in the flower cab. I was able to prove my theory by swapping lights, and the problem happened the other way around. I adjusted the height to the max but was still getting it a little so I adjusted the light to be indirect and problem solved.

I can tell by what you wrote and looking at your pictures that it's probably the same issue. Different lights in different areas giving different results for the same plant, first clue. Second clue, look how it's yellowing- new growth, top down, and probably worse in spots with more light exposure (a hunch). Third clue, they look kinda burnt/heat stress but your temps are good.
That seems like enough evidence to explore to me. I don't personally have one but you can get a meter to test light levels, I've never used one so I don't know how well they work but some people use them.
Hope this helps, good luck.
**Edit: I forgot to mention it was only the one strain that did real bad. Others seemed alright.
 
Dr.fillDAblunt420

Dr.fillDAblunt420

Active Member
Killaki said:
You answered your own question but don't even realize. I had a similar issue with one of my strains and was getting frustrated as fuck. Long story short... It was my new "better" LED lights. I had it in reverse though, things getting blasted in the flower cab. I was able to prove my theory by swapping lights, and the problem happened the other way around. I adjusted the height to the max but was still getting it a little so I adjusted the light to be indirect and problem solved.

I can tell by what you wrote and looking at your pictures that it's probably the same issue. Different lights in different areas giving different results for the same plant, first clue. Second clue, look how it's yellowing- new growth, top down, and probably worse in spots with more light exposure (a hunch). Third clue, they look kinda burnt/heat stress but your temps are good.
That seems like enough evidence to explore to me. I don't personally have one but you can get a meter to test light levels, I've never used one so I don't know how well they work but some people use them.
Hope this helps, good luck.
**Edit: I forgot to mention it was only the one strain that did real bad. Others seemed alright.
Click to expand...
Yes my suspicion has always been in the lights. I have a PAR meter so i know the light intensity is not too much. I have actually raised one of them today and turned some to 50% power to see if that helps with anything.

I did have SAP analysis done that showed my plants are low in Zinc, Manganese, Iron. This could be because my pH is drifting higher when watering and those micros don't uptake very well above 6.5.
 
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