Help coral problem

[mohammadali]

Hi my frog spawn shrink all the way in
and now my neon candy cane got all of this grey things all over it

water salinity is 1.24

water temperature 79F

nitrate is 10 - 20 ppm

PH 7.4 idk how to get the PH to 8.2

nitrite 5.0 -10 ppm

nitrite 0 ppm

ammonia 0 pmm

here is the pic