Zoa die off...

[downtime89]

Hey guys i am having some issues nothing else in my tank is having problems, but a few zoa colonys are having die off, it started with two exact zoa colonys on oppisite sides of my 125 both started dieing off. Now i got some green zoas look like they shrivel up a bit but still open for a few days then die... My water quality has been lookin good tho. Thoughts? I do a ten gallon water change a week on my tank. I have had these green zoas 3 years and this has never happend.

 

[pamelahaley]

I had 2 different types of zoanthids on the same piece of rock. One kind died off and the other is fine ::shrugs::

 

[downtime89]

well these have had thier own rock, its just like one zoa type after another.

 

[atlweb]

If everything else is doing well and your water parameters are good, I would suggest that something in there is bothering them. Any fish, crabs, etc. that could potentially be picking at them?

 

[downtime89]

Just 3 tangs regal, sailfin, yellow. One false perc, bar goby, mandarin. blue leg hermits. I have asternia stars by the thousand but they only get on em once they are dead.......

 

[lilrobb]

downtime89;601097 wrote: Just 3 tangs regal, sailfin, yellow. One false perc, bar goby, mandarin. blue leg hermits. I have asternia stars by the thousand but they only get on em once they are dead.......

Sure?
I have personally see Asterina decimate my zoas...

 

[jennm]

Zoa pox, sundial snails or zoa eating nudibranchs.

Those would be my top 3 suspects.

Jenn

 

[downtime89]

so should i do a dip incase of zoa pox? i will get my parmas soon as i can get a new reading away from home for now. I am pretty sure i dont have nudis or sundial snails i have not added anything new to tank for months and i keep a close eye on my tank.

 

[downtime89]

LilRobb;601157 wrote: Sure?
I have personally see Asterina decimate my zoas...

im pretty positive.... I dont ever see em on them till they are dead not sick. And i have had both zoas and stars for years first time this has happend.

 

[darren24]

If they are the blueish / gray astrena (sp?) starfish they will kill zoas as they move across the base of the polyps. Seen it many times in my own tank with my own eyes...

 

[jenkins2212]

NO Friggin way. Ive lost i HUGE zoa rock and had no idea why. Ive sat and sat looking for "critters" and nothing! But yes i do have asterina stars in my tank. Thats crazy if i lost a beautiful coral over some little white star fish

 

[cr500_af]

I've seen it too... and all of the evidence that one's eyes could provide say that they killed areas of GSP also. Yes, I realize this isn't true proof, but that's all I can say.

 

[darren24]

Amen Brother...