help!! fish dying...my coraline has turned white

[Maui4Me]

Ive been dealing with ick in an 80 gal tank. 3 of my 6 fish died in 3 days. My saline is. 024 ph 8.1 amonia.50 nitrate 5.0 phosphate. 25 temp 81. I have still have 2 clowns, a wrasse and 2shrimp 20 soft corals, feeding frozen plankton,shrimp,blood worms