Parameter disaster

After a wonder 7 day cruise the the Bahamas and Grand turks and Caicos I came home to a saltwater parameter disaster .

Salinity 1.022
ph 8.1
phos 0
ni 0
na 30
cal 175
alk 17

16g innovative marine mixed reef

maroone clown, blood shrimp, and open brain K.I.A and torch and frogspawn look like they are on their way out the door......

Just finished a 20% water change going to test water tomorrow.

What is a good, safe, healthy way to raise ph, salinity, and calcium while driving down alk.

 

Did the alk get that high from a dosing pump?
Normally I would say change things slowly but that seems rather emergency ish.. so maybe test and do another water change to bring the alk down.
I wouldn't fuss much with the PH or salinity. Just do your normal water mix to bring the salinity up a bit.
What salt mix are you using?
If it's not a reef salt add a little calcium slowly.

 

I over buffered it, not realizing it.

I get my saltwater from the lfs .