I've addressed all the issues I can.....ph is steedy at 5.8....drained res and then flushed for 2 hours with flora kleen....added new nutes (1140ppm) ....took plant out of cabinet and washed down complete interior of cabinet......sprayed with safer 3in1 (for mold and bugs)......lowered humidity (45%).......the only thing I CAN'T do is change what she's growing in......My question here is....after all these changes "IF" the black leaves come back and it is apparent it is rootbound what can be done???? Anything???? Is there a way to further modify a waterfarm (already drilled extra holes in top chamber)....Also this plant isn't that large and I though a standard waterfarm held at least 1 large or 2 medium plants....mine is a big medium :rastasmoke: Thank you.