I tend to agree with you...Ok I think my problem is overwatering
it surely looks like it...
I'm kind of an expert in overwatering....or underwatering as direct consequence of my fear of overwatering....
I'm so ashamed of my expertise...believe me
but still I'm a total newbie...and as I said to my friends...don't listen to any of my advices on watering...so you've been warned too
also lower your ph would be a good idea...hope you bought that ph-...I have a little experience in that area too...damn so ashamed again
but as you said...live and learn...I could not agree more