Ill clones and ill plants? HELP - URGENT!

To cut a long story short, are my clones okay as some seem slightly wilting?


And two of my three plants seem ill in some way. I know for sure one of them has some deffiency as it is beginning to yellow all round and also has other signs...
- Really ill plant - what is the deffiency here?
This plant is doing relatively okay. Dead leaves at bottomn of plant been removed. But this has occurred? What is this?
Thank you.

Give some details about your grow, what kind of nutes are you using? How often do you feed? How often do you flush with just water? What's your pH like?

It can be impossible to tell the difference between pH lockout and nutrient deficiency without knowing the variables, BC in both of them the plant will exhibit the same symptoms.

It doesn't matter if its BC the nutrient is there, or if the plant can't absorb it-- both will leave the plant without the nutrient, showing deficiency.

But I'm thinking a lot of that damage looks like its on new growth? Sure looks like nute burn to me (over feeding, the opposite of what you think it is).

I use GH nutrient 3 part... But I use 3.4L contrainers instead of 3.8. So my nutes are slightly more concentrated. I have just fed 6.8L of my nute solution which has been slightly weakened. Should I keep watchful eye on my plants and begin flushing if signs are worse? Also, the PH is at 6.0. I flush with water approximately every 2-3 days.

The water is PH'd to 5.8 by the way.

Maybe your clones have air lock?.... Next time try to take your cuttings from under water to keep air out of the stems. This helps also for cloning I would make a bubble cloner.. Fairly simple and easy to make yourself