Daihashi-
if she is using MG soil, i would caution strongly about adding ANY nutes at this time. Definately flush, but, i would then give them a day or 2 to show how they feel. prolly dont really need nutes for a month.
After draining last flush, I would water with PH-corrected water and let drain well.
that MG stuff is Nutrient rich. I know, I use it.
I usually flush mine before use and cut with perlite and plain potting soil.

And I believe the upwards leaf curl is usually indicative of too much heat. is it not?

Lola, do you have a fan moving the air around? if not, get a small oscillating fan in there on low.

get pics, we need to see what you see.