Bubbleponics - O.K.C.

Notes from 8/20/2024: After the water change on 8/16, the ph has been slowly climbing by 0.1 a day.  I've also added 1gal r/o a day.  However, this morning the PH had dropped from 5.9 yesterday to 5.5/5.6 this morning.  Clearly there was still a problem.  EC was around 0.6 yesterday I think.  This evening I pumped out 5+ gal of water and added 5 gal of r/o.  PH at 5.9/6.0 and EC at 0.3.  I'm hoping the PH will continue to rise from here on, but I'm not sure what else to do.  I'm going to start filling water because I'm sure I'll need a water change before the weekend at this point.   The right plant leaves are really taking a nose dive.  I'm not sure if it's light stress in addition to the nutrients, but this is the first thing I'm trying to see if I can get the plant to feed.  I'm concerned my A/B only nute solution could also be the problem without adding the C. Notes from 8/22/2024: EC got down to 0.2, PH climbing heavily after nocking it down as of this morning.   Water Change (@ 1800):   After reading this entire thread: https://overgrow.com/t/jacks-321-hydro-discussion-questions-tips-etc/24078/101   I decided to go with 50% Jack's 420: A 4g = 30g B 2g = 15g C 0g = 0g   PH was @ 5.9ph.  I nocked it down to 5.5/5.6 (anticipating it will rise throughout the week and I don't to keep adding down so much) EC @ 0.9 (was around 0.8 before adding down) Notes from 8/25/2024: Took Pictures