ph is 7 ( same since I started no fluctuations haven't checked the run off)... 20% runoff when I water (may have forgot a couple times)... I think its turning into a humidity / boron or sulfur issue from reseach I have done... also will be using bigger pots and organic soil of some time... I have read that could be the case, as I have a few wrinkled leaves and new growth is not coming in as straight as I would hope and browning on edges and curling down starting on the leaves edges ?? I fed them nutes with boron in it... so I know they SHOULD have enough...leading me to think humidity is too low not letting them absorb the boron.... I started the plant beginning of December and only fed them twice... once a week only when showing signs of deficicency. the fertilizer I was using didn't have calcium in it so I gave cal-mag twice ... but I did it a few waterings apart from the nutes... I didn't want to overload them. I also backed off the lights a little bit incase it might be too close causing the yellowing. I left the temperature around 72.5-75 degrees F and the humidity is now 45-50% ... before was about 35% To me they seem to be doing a little better than yesterday, but still not where id like.. I will attach new pictures below... Should I do the boric acid / water solution? any suggestions on soil? and does low humidity create yellow tops (boron deficiency or sulfur deficiency)? I was planning on watering today with boric acid solution or Epsom salts or just flushing it and I will grab a ph tester for the run off now that you suggested. Any and all help appreciated. Thanks. ( Leaf edges on some are curling DOWN / Cupping if this helps any)