Bubbleponics - O.K.C.

Notes from 7/22/2024: Applied medium strength Nuke Em this evening.  I think I did a more thorough job because I emptied about half a bottle from underneath.  I then used the remaining bottle on the top, but I lifted as much of the top leaves as possible so I could spray underneath them.  This process seemed to work well, and I think I did a much better job overall with coverage.   From my research, it seems likely that I have thrips from the damage, and strange things I'm seeing in the loupe.   ph yesterday was 5.8.  Today it was 5.7.  I meant to test this evening and didn't.  Not a good sign so soon after a water change.  Hopefully things will turn around.  I added my first gallon of water today, so that might help. Notes from 7/23/2024: PH is back at 5.8.  I could probably add 1 gallon of water, but I'm going to wait until tomorrow. Notes from 7/25/2024: Applied 3ml shy of full strength nuke em.  I shook off one flea beetle in the process.  I also killed two the first time I did a spray.  This means all the leaf damage I've been seeing is flea beetles.  I wouldn't say I've got a full blown outbreak, but I think there are still some around.  I don't think the nuke em is affecting them very much, if at all.  I set up two sticky traps to see if I can monitor bug levels.  My other option is to vigorously shake the plants to see if they hop off onto sticky traps I position under the plant.   Also, still seeing some lower leaves dying off with dark wilty lesions.  I will try and take a picture of the next one I find.  I have no idea what it is.  The PH and water has all seemed very normal, so I don't think it's anything with the water/nutes. Notes from 7/27/2024: Regarding the last nuke em application:  It burned several pistoles, moreso on the smaller plant.  I can now confirm that the bug damage has been flea beetles.  I think the last application (with me agitating the plant) killed the last of the flea beetles.  One last one I saw fell to the ground and I killed it.   Regarding the leaf damage I've been seeing, I'm convinced is Phosphorus deficiency.  After much research, I decided to change my Jacks ratio to the following: A: 3.79g  - 15gal - 56.9g B: 2.52g - 15gal - 37.8g C: 0g   The new ratio came out with: 5.7 PH 1.8 EC   I took some more pictures.