[daniella3d]

I am starting to think that zoanthids need a separated tank where they live alone with no other coral near buy. Some are very sturdy and some always show some sign of problem. I had a magicians paly frag that had 2 separated colonies on it. One was a single polyp and they other were 3. They grew nicely and very fast until on day for no reason they started to show sign of getting skinny and sort of shrinking but the one polyp was not affected. That one polyp multiplied to 5 polyp while the others did not do well..

then one day I do a water change and those there were looking bad started to come back while the one polyp colonie (now 5) started to do the same shrinking and skinny feature.

On the other end, I have some armageddon, rainbow and pink & gold for a year and half and they never ever showing sign of this. It is very very strange.

There must be something in the water that they don't like, or that disturb them. I also noticed that one day I had put some iron and magnaneese in the water for my alveopora and the magicians instantly closed and started a cycle of shrinking and looking skinny again. I had to do 3 water change side by side to see them make a come back.

Each time I do a water change one or the other colonies is going through such cycle...sometime they come back, sometime they just melt.

If only we knew what they needed and why they were doing this. That's the million $$$ question and if I ever become very rich, like winning at the lottery, I will put a good bunch of money on research on this.