Need help with diagnosis

1st plant yellow

2n plant spotted Need help

Some info is needed. Soil, ph, ppm, nutrients, ph and ppm runoff readings.

The first one looks hungry for P and K.
The second looks to be calcium

Good morning.There growing in a 50/50 Happy Frog and ocean forest.Runoff is between 6.6-6.4 ppm is 2200 on first 2500 on 2nd.This grow I didn’t use nutrients.I have the fox farm trio but I’m afraid to use it.From day 1 I been testing runoff the numbers were huge on the ppm’s.Maybe just Happy Frog next time.I want to start another grow but I don’t know what’s happening