Help-i think my plants are dying!

[Sessan]

Since i switched to flowering stage early january i had the wrong ph for several weeks (i think) since i thought i just had to take the same amount of ph-down as i veg state. I checked the ph when i noticed that something was wrong. I have since then flushed the plants and are now checking the ph both in and out with every watering and it is within range, temp and humidity is also good. So why are they looking like they are dying? i can't stop the leaves from turning yellow and die off. What am i doing wrong, any suggestions?

 

[YYCannabis]

Pics in better light will make it easier for people to see what’s happening.

 

[Sessan]

I hope these are better

 

[Rwise]

Watch the new growth, the leaves that yellowed will not recover they will continue to be used up then die and fall off. The damaged ends will not heal, but may not continue down the leaf.
At this point its not so much about the leaves anyway.

 

[CaptainWiese91]

What about the temperature?
What about mediums being used ?
what about nutrients and how much is being used ?
could be a lot of factors from the info we don’t have on the grow.

 

[Sessan]

But is it not a bit early for the leaves to yellow? Not quite sure what you mean with watch the new growth, if you mean to se if the yellow spreads down the leaf. But why are the new leaves yellow to bigin with i wonder. Thank you for your answer

 

[Rwise]

And what is the light?
RH?
Myself I see different things in the leaves, to much N being one, PH issues being another.

 

[SoOrbudgal]

Root rot is my guess but not knowing the grow like what CaptainWiese91 is talking about. Nothing at this point other than allowing them to ripen. All those leaf will fall off. Something like you said early on mess with the balance in the soil, combine heat and maybe air circulation fan blowing on them??

 

[Sessan]

400w hps
40-50
I am adding less n than what is advised though and i am checking the ph every watering and it is within range. This is why i am a bit confused

 

[Sessan]

Temp is around 28c during day and 18-20 nighttime
Medium is soil
Nutes are micro, bloom,protector 4.5 cl micro and bloom 3.5 protector for 1.5l of water

 

[Sessan]

Yes i have considered the roots to, but do not now how it would have happened though. Air circulation is good, one fan below and one above with a gentle breeze on the plants

 

[CaptainWiese91]

It’s sounds a bit too much nutes for a 1.5 liter of water. ??
Sure you didn’t burn them to the ground with that ratio of nutes?

 

[CaptainWiese91]

Root rot can come from a lot of things. Overwatering especially

 

[Sessan]

Sorry, meant ml

 

[Sessan]

Yup, but i have not overwatered them. On the other hand i think i have underwater them since i recently learned that i am supposed to water them until i get some runoff water out from the pot. Which i have not done

 

[Sessan]

But if it is root rot, is there anything i can do or will my plants die?

 

[CaptainWiese91]

It’s still much ? I maybe use that ratio for a 5 liter bottle or a 6 liter bottle..

 

[CaptainWiese91]

I think you burned your roots with too much nutes and most likely burned the roots if you didn’t have run off water.

 

[Rwise]

Not having the run off leads to a build up of salts in the medium (mostly when using bottled nutes), for that you may want to flush them to get the salts out so the PH can balance in the soil. This would be a root zone issue.

 

[Sessan]

Hmm, ok. But i am following my feeding schedule and are a bit under what they recommend