Critical+ 2.0 Auto

She's got a little bit of tip burn going on, as well as some lighter leaves - had some issues with growth speed vs light height (I rotated her to be between the lights, so main cola is not getting blasted with close light) as well as pH issues. The pH keeps dropping by up to 1 point throughout the day/night. I did some pH up the first day, just to have it steadily drop again later. Changed the res water, no root issues (huge root ball and all pearly white) and redid nutes at a lower ppm from 280 to 208. That resolved the pH issues for about a day. pH drop again today from 6.2 to around 5.4, ppm still at 208 and EC at .41 Turned the air pump to the lowest setting as well, just in case it's acid rain effect. She's still looking healthy overall, just got to reel in the pH issue.