My trumpets aren't looking good

[Xbreakxitxdownx]

My trumpets are looking green other then white and are dying off help!

 

[Reefing Madness]

Gotta have water parameters. They like some Nitrates and phosphtes in the water, not totally clean water.

 

[Xbreakxitxdownx]

Ammonia-0
Nitrites-0
Nitrates-.25
Phosphates-.25
Calcium-450
Kh- 8 drops on API test kit.
Salinity-1.026
Ph-8.20
Temp- 78.9

 

[Reefing Madness]

Mag reading?
Ok, so it looks as if the bottom portion may be getting beaten up by the coral close to it, the one on the bottom of the pic. Is there another coral by the top portion of it that would release tentacles?