Ewww!!!! sorry man! You may want to post that one in the plant problem section! I cannt help being a newb and never having to deal with a plant issue. My plants just keep growing and being happy thank god lol. Id be lost sorting that shit out lol. Hope you get it figured. Not that it matters but all I have ever used is Higro a+b grow and bloom and have had no issues ever. I run my TDS around 550-650, PH 5.8 veg and 6.1-6.5 flower. I have used bloom boosters in the past but no noticable difference. Also i never top up or add back, just change water every 7 days, typically when PH starts to drop. My TDS drops slowly over the 7 days as well. Last 7 day period I started at 650 and ended at 580 before refill. My complete system holds appr. 140L of water BTW and it is recirculating 24/7 from top tray to bottom res always around the 70f and colder range. good luck!!