Acro issues

[msujohn]

Can somebody tell me if these corals are dieing? Is there anything I can do to save them? My nitrates have been high around 15 ppm. My alk is 9.0, cal 420, and mag is 1350.

 

[Wolff92]

Nine of them appear to be dying. Their polyps are out which is a good sign. If you start to see tissue falling off then you know you have a problem. But from what I can make out in the pictures your Acros are doing fine

 

[msujohn]

One of them is browning out and the other has polyps out, but it has lost a lot of them? The 1st and 3rd pics are the same piece.

 

[msujohn]

Anything I can do to help these acro's?

 

[trido]

Lower your nitrates...
Otherwise your corals seem to be healthy.