My anemone won’t inflate

[Carsonm]

My anemone has been like this for 2 days out of nowhere. He use to be big and healthy. Is there something I should do? He is throwing up purple matter and is continuing to shrink. He is still planted on the rock and has moved twice in two days. Should I move him back to the spot it was in or leave it and pray for the best. I have also added a few pictures from around a month to half a month ago of him.

 

[KrisReef]

That anemone appears to be slowly dying, perhaps from lack of light?

 

[dvgyfresh]

Orphek or4 bars are likely needed to supplement light