Cyphastrea Coral Suddenly Dead

[Shep]

So all of a sudden 3 of my Cyphastrea corals just straight up died over the span of a day. I know it was not bleaching as the lighting did not change. All parameters were good, any thoughts?

 

[Shep]

Also they got this weird white crust on them that seemed to spread before they died.

 

[Reefapprentice]

Any softies in the tank? Any other corals showing signs of stress?

 

[Chris Adams]

that is strange I have tortured some of mine and although loss of color never seen that

 

[Chris Adams]

polyps gone and everything?

 

[Diesel]

Man that sucks.
Never experience that.
Are you battling your HA?

 

[Derekchristopher763]

Probably parasites

 

[Shep]

polyps gone and everything?

Yep, they look 100% dead, it literally happened over the span of a day and it spread from one to the next but oddly my two other ones are fine

Man that sucks.
Never experience that.
Are you battling your HA?

Yea, have a little bit of it

 

[Shep]

Probably parasites

That was my fist thought but its only killing 3/5

 

[Diesel]

What do you do to battle the HA?

 

[Shep]

What do you do to battle the HA?

Water changes/nutrient control and manual removal

 

[Diesel]

Oh ok not special shep brew or something that can explain the quick dead on the corals.

 

[aaron23]

if all else is fine i'd say its some chemical in the water, did you put your hands in? Or what other corals are nearby? How long have you had those cyphastreas?

 

[Shep]

Oh ok not special shep brew or something that can explain the quick dead on the corals.

Haha no, no special brew

if all else is fine i'd say its some chemical in the water, did you put your hands in? Or what other corals are nearby? How long have you had those cyphastreas?

I don't know if it could be a chemical just because it only killed those three corals. There are some zoas, a few SPS and acans near by but they have been there for 6+ months and I have had the corals for over a year

 

[aaron23]

i did a RB treatment with 4 year old interceptor and one maricultured frag just withered all else are fine. if nothing else happens i'd just chalk it up to mother nature doing what it wants yet again