Help my Anemone is dying

[Oliver d]

Help my anemone is dying.I have had it for 6 yrs and the last few days it has been deflated and has list its colour. The only thing that changed in the tank is that I added a cowrie snail. Ph 8.4
No3 0.025
Po4 0.01
Ca 430
Mg 380

 

[Jonify]

Help my anemone is dying.I have had it for 6 yrs and the last few days it has been deflated and has list its colour. The only thing that changed in the tank is that I added a cowrie snail. Ph 8.4
No3 0.025
Po4 0.01
Ca 430
Mg 380

How long have your nutrients NO3/PO4 been low? And is that the right Mg number?

 

[Ocellaris123]

what kind of anemone

 

[Miniyork]

Did you add a new anemone ?