Mysterious zoa deaths

[Krazymuncher]

At the middle of last year, I purchased some Zoas but they soon died off and I didn't think much of it as some purple star polyps had hitchhiked on the rock and had popped up a week after the death of the zoas. When the zoas died, it left like a white husk that stuck to the rock but was easily scrubbed off when I was cleaning some hair algae off the live rock. Today on my main rock work, I saw one of the white husks attached to my main rock work and I have no idea why it got there as I thought I had removed all of it. Has anyone had zoanthids die and this happen to them? I will get pics tomorrow as my phone has no battery and I'm very tired.

 

[scottedontknow]

We need a LOT more information. Tank parameters (and what test kits) age of tank, lights being used, what if anything are you dosing.

 

[Krazymuncher]

Light are Aquaone Mariglow 60, not dosing anything yet, Using API reef master test kit and API Saltwater test kit, pH of around 8.2, 0 ammonia, 0 nitrites, around 0 nitrates, 340 calcium, 9 dKh. Currently the tank has a Fire shrimp and 2 medium-sized clowns.

 

[Krazymuncher]

I also have a Hammer coral and a patch of purple star polyps.