What's happening to this coral?

[RaymondL]

I'm not going to post the water parameters because they have been very close in values for months - nothing has changed major in water chemistry at all levels, and lighting and flow has remained the same.

This coral has been like this for over a month and a half. It was fully open/healthy for a long long time, so I'm not sure what's happening.

Any ideas welcome.

Thanks

 

[blaxsun]

I've seen this happen to (similar) corals that were placed in the sand bed. So I'm not sure if it's a case of getting some debris that's irritating (receding) it. It may benefit from being placed on a small rock or raised higher up. Something you could try, anyway.

 

[RaymondL]

I've seen this happen to (similar) corals that were placed in the sand bed. So I'm not sure if it's a case of getting some debris that's irritating (receding) it. It may benefit from being placed on a small rock or raised higher up. Something you could try, anyway.

Thanks - I'll try that. I'll move it onto a rock, which is positioned next to it, so it's off the sand bed - at this point, I'll try anything.

 

[blaxsun]

Thanks - I'll try that. I'll move it onto a rock, which is positioned next to it, so it's off the sand bed - at this point, I'll try anything.

My LFS had the exact same coral and for some reason it died off in the center (just like yours). It's since made a full recovery and completely grown over the previous areas it recessed.

 

[RaymondL]

My LFS had the exact same coral and for some reason it died off in the center (just like yours). It's since made a full recovery and completely grown over the previous areas it recessed.

Thanks for sharing - that's reassuring. Makes me wonder why this is happening, and perhaps this is somewhat normal as much as it doesn't seem to be. Weird.......ever since I've started keeping corals, I know they have a 'mind' of their own - sometimes they don't open because maybe they're just being stubborn, or had a bad day/week

 

[blaxsun]

Thanks for sharing - that's reassuring. Makes me wonder why this is happening, and perhaps this is somewhat normal as much as it doesn't seem to be. Weird.......ever since I've started keeping corals, I know they have a 'mind' of their own - sometimes they don't open because maybe they're just being stubborn, or had a bad day/week

If it's any consolation they never figured it out, either.