Leave dying from middle out?

Hello I seem to be having some issues. I am running a hydro DWC setup with drops trio nutes plus Cali magic hydroguard and hygrozyme. The leaves seem to be dying from the inside out and the tips appear burnt as well. Planning on switching to flower here in the next day or so. The past week this has slowly gotten worse and I can’t seem to figure out what is going on any advice is much appreciated. It seems to only be affecting lower leaves as of right now.
 

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Ph and EC ?
Ahh sorry ph pretty steady with the hygrozyme at 6 I drop it dow to 5.7-5.8 and in a few days makes it way to 6. My PPM (using the 500 scale is currently like 1300. So last reservoir change I did the ppm prior to rez change was 1200 after was 950, the plant started leeching nutrients until it balanced out.
 
Ph and EC ?
A little background on this plant the stalks are huge, I definitely vegged a lil too long but that’s because I put my SCROG net on really late. So I’m not sure if the plants are just really big? My 17gal reservoir is almost covering the bottom with roots.
 

myke

Well-Known Member
EC is pretty high. Normally 5-700 should be lots. Blotches like that could be humidity sitting at night? Not enough air flow maybe. Ph down put into the res to strong can do that also. But I’m gonna say ppm is too high. Leaves are super dark green. Will see what others say.
 
EC is pretty high. Normally 5-700 should be lots. Blotches like that could be humidity sitting at night? Not enough air flow maybe. Ph down put into the res to strong can do that also. But I’m gonna say ppm is too high. Leaves are super dark green. Will see what others say.
What can I do to lower the ppm without causing the plant to leech nutrients?? Also it is a good possibility of having too much ph down in reservoir as well.
 

myke

Well-Known Member
What can I do to lower the ppm without causing the plant to leech nutrients?? Also it is a good possibility of having too much ph down in reservoir as well.
Well just lower the food. What your saying is ppm drops a lot ea day even at 1000-1200 ppm?
 

myke

Well-Known Member
Also useing hydroguard and hydrozyme at same time? I’m not sure about that??
 
Well just lower the food. What your saying is ppm drops a lot ea day even at 1000-1200 ppm?
No the ppm slowly rises, last time I changed the reservoir and the ppms went from 1200 before to 950 after. the roots turned really brown because it was leeching nutrients back into the reservoir. Also the ph was climbing rapidly like overnight.
 

myke

Well-Known Member
No the ppm slowly rises, last time I changed the reservoir and the ppms went from 1200 before to 950 after. the roots turned really brown because it was leeching nutrients back into the reservoir. Also the ph was climbing rapidly like overnight.
What ?? Ppm rises or lowers??
 
Sounds like a pathogen in your system.. sanitize..
Any good references for sanitizing besides just put some hydrogen peroxide? Could it be that I put too much ph down trying to balance out the the constant ph rise in the beginning? I’m going to dilute the water from 1300 ppm when I get home she’s drinking plenty of water
 

HydoDan

Well-Known Member

myke

Well-Known Member
Okay so when I changed the reservoir last the ppms raised quickly. So did the ph. Once it leveled out now they are slowly raising and the ph is stable
If ppm is rising your too high,water drops as their drinking but theres food left behind.PH rising is good, when it drops is when you should be concerned.Normally root trouble when pH drops.
 
If ppm is rising your too high,water drops as their drinking but theres food left behind.PH rising is good, when it drops is when you should be concerned.Normally root trouble when pH drops.
Okay I’m going to slowly dilute the solution back down what is a good ppm going into flower my nutes have it at like 900-1000.
 

myke

Well-Known Member
Okay I’m going to slowly dilute the solution back down what is a good ppm going into flower my nutes have it at like 900-1000.
You want ppm to drop with water level or close.So drop the nutes say 600 and see for a couple days if it drops go to 700 and see.Listen to your ppm meter.
 
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