Help ID sick coral

[kdtorgy]

Can someone please help identify the greenish (sorry I'm colorblind) coral that is fallen over. I think it's some sort of leather coral but I'm not sure. Every few weeks it tips over and usually goes back to normal within a day or so. I've had it over a year and the water parameters have been pretty stable since I got it.

 

[Nate Chalk]

Green neptheA, they do this from time to time

 

[fishguy242]

hi, sinularia

 

[Nate Chalk]

hi, sinularia

I believe fishguy hes way more experienced than i