Almost 2 year old zoa colony dying

[ItouchedThebutt]

Do zoas have a life expectancy or what? My oldest colony is suddenly crashing everything else is fine, params and everything and these guys are just shrinking and shriveling away. I've done to revive dips already to no prevail yet, worked for me on other zoas dying before but I'm just stumped. No visual signs of predation just shriveling away. Nothing near by to sting them either they have their on rock and all that I'm just stumped at this point and worried my first ever coral is about to perish.

 

[Ranjib]

Corals are biologically immortal, from what I understand. Can you check at night if there’s some other ost which is bothering the zoa. I know some of them can be closed for weeks... I don’t know why, but it’s widely reported phenomenon. But they don’t melt away, they come back just fine after that period

 

[ItouchedThebutt]

No 4th hese guys are just shriveling up. Heads dropping off like flies I've done night and day inspections, no eggs no critters.

 

[ItouchedThebutt]

Sorry just dipped and I think its nudist yall tell me

 

[Michael Naegeli]

That’s a Nudi

 

[ItouchedThebutt]

Question all the heads seem to have died every on I touch just breaks like a scab. Should I just ditch this colony so no other nudis get to my other zoa garden

 

[ItouchedThebutt]

The heads on these are yellow to. So much for my wrasse eating them I guess