Been having problems with EC! And I thought I had it made.😏 The only thing I can figure is my mix of HP Myco, and HP coco coir, EWC, shrimp compost, perlite and a little powdered dolomite lime must be too "hot". I am using a bluelab truncheon that is accurate and my runoff EC is 3.6. Plants were still to dark despite my hopes. My well water is 400ppm so I will try to keep my input water 1.8EC and 6.2 - 6.5 PH, 21 degrees and my runoff 2.0 EC. I have put thru another 120 L of just PH'd water 0.8EC until runoff was 1.8 to 2.2. Their shade of green looks better but there are 4 that are still too dark so I will try more water tomorrow. EC'd, PH'd & took Temp of all inflow and outflow on 10 plants (this takes forever)😟. Watered again with 6.3 PH, 20 degree, 0.9 EC well water and put thru 3 gallons for 6 plants . Run off EC was 0.8, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 2.0! Their colour and hue is much better than it was, not so heavy and dull, and I believe that this flushing has saved them from being stunted and having more cell wall damage, as well as nitrogen toxicity and other bad stuff. You can see them coming around already from my blunders. Today Sept 28 is Day 73 and Day 14 of Bloom. I can hardly wait to actually feed them something in a couple of days.