Hammer coral under stress or sick ?

[DEGREGORIIS]

I had a sudden light intensity increase due a broken controller. It went from 20 white and 70 blue to 100/100. It's fixed now .

Can this be the reason why my large hammer coral starts to die ? Or should I search for other causes ? Other corals are ok. Some other los nearby also stress or die but slower and seems to havecstopped.

Po4 ( 0.08) and No3 (15) are stable since months.

 

[Formulator]

Could be. Sorry I can’t say for sure. I’m so sorry for your loss. That is a beautiful piece.

 

[Purpletang92]

Doubt it, how quickly did it start to die back? Have you dosed anything in the past few weeks? The frogspwan at the bottom doesn’t look happy either.