Soil vs RDWC - Blue Dream/Stardawg

3/20 - heading into week 2 flower/week 6 overall. Stardawg is healthy budding, but the Blue Dream is having issues. Flushed it with FloraKleen and tap water PH 6.5 runoff at 1080PPM which for soil doesn’t seem that high, but it looks like it has nute burn/lock from ph issues before. PH is fixed now and PPM seems good so hope it’ll recover. Now have the West Coast OG (1) transplanted and the Lemon auto in soil. 3/23 - Blue Dream is struggling with PH issues. Soil has to be around PH 5 as the runoff from water @ PH 6.5 is just under 6.0 and PPM ~1400. I don’t know if I should keep flushing or just transplant into new soil because constant flushing is giving me signs of overwatering, K def, and stunted growth during flower. The Stardawg is budding good may have slight N tox, but nothing to worry about. Runoff of stardawg is ~ PH 6.3 and PPM 1800. 3/24 - flushed Blue Dream with ~3 gal and Stardawg with ~2 gal dechlorinated tap water. Brought the PPM on both way down. BD ~950 from 1800. SD ~1200 from 1900. PH on both are within range now, hope it stays. BD has hardly grown while SD is budding decent. 3/27 - end of week 6 let them dry out a bit over the past few days. Decided to do another small flush with FK to get an idea of where the PPM and PH are at. Both plants are now in ideal ranges with Blue Dream coming out at ~750 and Stardawg ~900. PH is 6.5-6.7. Gave BD light nute solution at ~300PPM.