Leptastrea dying?

[HereFishyFishy3]

I’m not at home right now so I can’t get tank parameters at the moment, but can anyone tell me what’s wrong with my leptastrea? It was doing really good, open everyday and really responded to feeding until I couple days ago. All the other soft and hard corals are doing good, as far as I know no major parameter swings. The only thing that happened was the temperature dipped a couple degrees one day.

 

[MNFish]

If I had to guess I would say something else attacked it. Are there any other corals within 6 inches of this one?

 

[HereFishyFishy3]

If I had to guess I would say something else attacked it. Are there any other corals within 6 inches of this one?

The only coral that is near it is a pipe organ coral

 

[HereFishyFishy3]

I have seen some snails near it, but according to some other members they were peaceful. It almost looks like the polyps are closed up, but it seems that a few more are closing everyday. The other non affected ones are open and happy as soon as the lights come on. I think I read somewhere that if part of a coral is unhappy and the others are fine not to worry about it too much. Just not sure. I will try to do a water change later today to see if that will help. I will also turn out the lights to see if there’s anything growing in between the polyps.