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Ph problems or nutrient burn?

jonhova

Active member
This is my second batch of clones that have shown the exact same symptoms. The go from growing regularly to being stunted. The clones get very yellow and dry and eventually just die.

These are Black Cherry Soda fresh cuts in rockwool. I had black diamond which seems more sativa leaning and it never even sprouted any roots. DOA.
I really didnt want rockwool but the guy i got them from wanted to cut me for asking for them without rockwool.

First try
  • My first attempt I used kelloggs organic plus mix with ewc, kelp meal, rice hulls, and lava rocks.
  • I overwatered for sure. Every other day.

Second try
  • This time I used rice hulls and ewc 50%/50%. A pinch of crab meal, a pinch of kelp meal, a pinch of gypsum and a pinch of neem meal. I wanted to play it really cautiously.
I watered when it was really dry every 4-5 days.
Water quality
  • The ground water average 7.6 PH.

Here's some pictures.

Clone 1



The roots are growing pretty good.


Clone 2


Roots stopped growing and top growth stopped





Proposed solution
I either need something to buffer my soil like agricultural lime to help over the long term or get ph down and some a ph pen or strips

Am i on the right track? I just want to grow some herb :frown:
 

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