Well it happened again.....and yet again*updated*

[daniella3d]

Well that's the thing, you don,t know for sure. You may have introduced a bacteria, or a parasite that killed your fish and that polluted the water. There could have been some heavy metal in the water in wich the zoa was in. If it was a zoanthid, and not a palythoas, it is very unlikely it was palytoxine as they were never found to carry it.

Especialy clown fish are very resistant to toxin. One of my friend had one of her anemone stuck in a powerhead and released toxins in the tank. Everything died overnight except her clownfish and invertebrates. The anemone survived.

Originally Posted by marcingo

It was two tiny clowns and they were ok for the entire time 3-4 months. Then the day the zoos go in everything is dead overnight. No symptoms before that so I know for sure it was the zoos.