Finally realized my ph error. I was mixing nutrients, ph to 6.0 and then aerating the mixture. This time I checked after aerating and found the ph to be about where it was originally, just over 8. Now I ph after between 5.8 and 6.2. CL2 took awhile to recover but the other two didn't have any serious stress from the ph. Topped each one. Transplanted to 4 gal fabric pots.