i dont have a picture right now but ill work on getting one up. but this is what it is. the mouth of the zoa gets really pointy and sticks out and then the skirt closes backwards instead of the right way when they close. any one heard of this? soon or later the zoa just withers away.


any one?

Mine turn themselves backwards once in a while but they don't die...

zoas do all sorts of odd things...make sure your lighting is up-to-date, and all parameters are within range.

I find zoas do this sort of stuff when you change location of colonies, do any sort of adjustments to flow and lighting.

try not to worry too much about individual colonies of zoas, sometimes you can do everything right and they can still go south on you.

yea but multiple groups are doing it. i have the zoas for over a year and never done this.

hmmm...how old are your bulbs?

In the past I had zoas start to look chewed on, and inverted and all sorts of mess....it was because of the lighting..

I'll assume you dont have nudibranches....

How is your alkalinity?

Has the flow in your tank changed...GPH wise, or even directionally?

maybe it's some sort of disease, you should try a mass antiseptic dip.

no nudis, alk 9, calcium 410. and no water flow change. chemistry wise all good. lighting wise all good.


i think your right however i need a in tank treatment. my tank is a 110gallon loaded with zoas.

here a photo of two groups with the pointed mouth stage. i dont have any left of what happens next.




ideas?

woah! that actually shocked me when i saw the pointed mouth...my honest opnion, is that theres something really bugging the zoas...any parasites?

nope nothing i can find. all looks good... idk

zoas in heat.