No worries man and thank you. It's coco/perlite 70:30 and Beanstalk crf in autopots. I just ph the tap water reservoir at that's it. I'm not really a green thumb but these are about as healthy of plants as I've ever had regardless. It was not lost on me that you are looking out for my wallet as well in my obsession to have a perfect environment while I could be neglecting basic plant signs. I appreciate that.
I had a look at that Beanstalk, its like those Grow Dots slow release ferts, I don't know man Id rather run a full coco nutrient where the plant has access to all nutes at any time throughout all the media and you can make adjustments at different times, I can see those slow release pellets causing problems as you have no control over anything, maybe next run give a quality Coco nutrient a go I use Canna but there a few others that's as good or better, it might fix the issue this lot is showing.