Thank you so much for understanding my situation - really appreciate it. I buffered the coco myself with 150% dose of cal-mag (2 soaks of 8+ hours each and take out as much water as I could. The mistake I made was I didn't use water with the correct PH (tap water is around 8 with 40PPM). To rectify the issue, on day 7 or 8, I flushed the pot with PH 5.x water. Coco PH is now at 6.3 (using my Hannah soil PH meter). I have also just watered it with cal-mag and nutes, so hoping she will pick up pace, but have no idea.
I just germinated another seed and it's in a rapid rooter right now waiting for it to break surface (likely tomorrow). I have already flushed the pot that this lady is going to go into and PH of coco is at 6.1. I plan on doing a pre-wash with 100PPM nutes and cal-mag before transplanting the rapid rooter.
Is there anything else I should be doing?