I saw. Thought it was interesting as my nutes are suppose to PH balance as well, so perhaps my small UFO LEDs are causing the plant to need cal mag. I started to slightly notice the same thing on my big AL, but I feed her cal mag once a week. So maybe I should think about going twice a week on both and see if its fixed. I checked today and theres no more signs of the browning progressing, nor has any new leaves started to do it.