Alveopora help

[Jphvav90]

This alveopora was opened huge and beautiful but the other day I came home and it was closed as you can see in picture the one next to it is fine. Both are about 8 months old any help would be greatly appreciated

 

[vetteguy53081]

This alveopora was opened huge and beautiful but the other day I came home and it was closed as you can see in picture the one next to it is fine. Both are about 8 months old any help would be greatly appreciated

Moderate light and water flow and feed2x weekly
Assure nitrate-phosphate and salinity not elevated

 

[brmc1985]

This alveopora was opened huge and beautiful but the other day I came home and it was closed as you can see in picture the one next to it is fine. Both are about 8 months old any help would be greatly appreciated

Maybe chemical warfare? Could another coral have gotten close enough to sting it and tick it off?

 

[Jphvav90]

Maybe chemical warfare? Could another coral have gotten close enough to sting it and tick it off?

There is only another alveopora that would be close enough