The only thing that jumped out at me from the form was your ph.
5.2 is too low, I wouldn't go any lower than 5.4-5.5. This could possibly be locking out magnesium.
And yes actual pics of your girls would help a ton in proper diagnosis, instead of just getting guesses.

Keep in mind I am a newb myself, and just passing along info I have picked up along the way. :hippy: