I am running a air cooled 600W HPS with constant temp and humidity levels. I just entered the 4th week of flowering (3rd gen). These plants are normally very strong but have weak stems and have been yellowing and getting crispy. I don't want to rule out nute burn but nothing has changed with my PH or Nutes with the exception of adding a flowing booster.![IMAG0079.jpg](/data/attachments/1024/1024111-0e8a8913a02f6ae0213b187a83f31fec.jpg)
.. What do you think this is?
![IMAG0079.jpg](/data/attachments/1024/1024111-0e8a8913a02f6ae0213b187a83f31fec.jpg)
![IMAG0080.jpg](/data/attachments/1024/1024110-e9b85b0f520cadf8b193c27e52b07edf.jpg)