Euphyllia wont open

[Atomins]

hey guys, Pretty sure i had my RBTA die in my reef, its completely gone. without testing i did a 25% water change 3 days in a row. now everything is starting to open back up but the water is still a little cloudy and my frogspawn and torches wont open. other lps like my acans looked horrific before the waterchanges and now they are starting to look better. heres my parameters just tested.
Nitrate 0
Nitrite 0
Ammonia 0
Alk 9.7dkh
Calcium 440ppm
Mag 1460ppm
Phosphate 0

Next step if you guys arent sure is to do an icp test, they have been like this for a few days

 

[blaxsun]

Do you run any carbon or a UV on your system? Looks a bit cloudy.

 

[Uncle99]

Nitrate 0, phosphate 0, real bad combination, stuff will starve.
Worse, those numbers sometimes lead to Dino’s and cyanos.
If they are 0, you’ll need to bump them.

Is that the cause? Likely not but if unattended to, will lead to many issues.

The water changes have altered your water chemistry so some things may take a bit to adjust their processes.