help! day 14 plant issues

Greetings all! I posted this in the grow problems forum this morning, and havent gotten much feedback, so im reposting here. Hopefully some of you pros can help me out

So, a little background for my third effort:
Strain- THC bomb feminized-bomb seeds
Nutes-1ml/16oz FF kelp, kangaroots
Medium-rapid rooter, FFOF, perlite
Water- Brita filter-third or forth day of getting watered once per day(flushed w/~12oz)
Lights- 100 watt LED, 4x23 watt CFL

On Jan 29(day 9 from seed sprouting) I noticed that there was a tiny spot on one of the serrated leaves.
The next day it looked a little worse, so I checked the PH, and it was pretty low (~6.0).
After thinking about it, I realized that even though those Nutes are super light that I should have been PHing them properly from the start.
I have since corrected the PH issue (stabilized at 6.5-6.6), but she doesn't seem to be recovering much, if at all. Now there seems to be some lightening of the second set of leaves like nute def, but at day 14 I find this unlikely. The only thing i can come up with is resudual shock from PH flux, but idk..
Any advice, or experience is greatly appreciated.

Thank you for your time

-vapesCHRONICally

PS I think the pics are from days 9, 11, 12, and 14 (today) respectively
PPS the lights were 12-13 inches away- I just pulled them up to ~14.5 in, and I stopped giving any of the FF kelp+kangaroots mixture when I realized the PH issue just ph'd water for the last few days.

are you in rapid rooters and those peat tomatoes pots that dissolve once planted in the ground

if so do relize peat holds water hense nutes

as you pour more nute in total screwing any chance of a stable Ph

Rapid rooters-I cut the jiffy pot off later and transplant to a 3 gallon smart pot, and as i said, I stopped using the diluted solution when I figured out there was a problem. The PH has been staple for a couple days now (based off PHin vs PHout) Thank you for your input