Well if you stop doing that the nutrients still there when i got that issues i changed 50 % of water every week for 6 times and alga and cyano were gone also added GFO reactor and more cleaning crew
Did you check out your rodi filters lately?
No only red if you have to
Much white also , lower you white
What did you add to your cleaning crew, RODI is at 0 TDS. My white is already very low, is it not?