Sick Zoa?

[IamELMO]

My zoo colony has started getting a funny shape, instead of being quite flat and tentacles out, it's got quite pointy and the tentacles are pointing mostly towards the ground. They are an only colony in as much as they have their own rock and are about 8inches from any other coral. There is no fish in the tank with them. My amm, trite and trate readings are all 0. My salinity is about 1.026 and temp is about 26-27C. The only thing that has changed is I am dosing vodka (currently 1mL in 100G net volume)

I don't have a pic at the mo, so I drew it to give an idea

Any ideas what would cause this? All my other colonies are doing great.

 

[seafansar]

Some zoas and palys will do that for no good reason. Best thing I've found you can do it give them an iodine dip.

 

[aaromano]

I think I missed something what does dosing vodka do?

 

[cbrownfish]

IME, this usually comes from very low nutrients or chemical warfare. Dosing a carbon source like Vodka can definitely cause PO4 to drop to very low levels. My zoas have never liked sugar/vodka dosing. From here it is typically a waiting game.....mine often recover.