So the title says it all, I had them for a few days then I went to the mountains and when I came back the colony was had about half the polyps open so I thought it was probably a hermit crab. The next day I noticed more were closed and it had dropped a polyp. It was still open so I glued it to a frag plug. That day I did a water change of about 15%. After no improvement I dipped it in revive which knocked off some small black bugs (I think they are nudibranch)There was still no improvement so I went for a second dip today and in the process a second polyp fell off. They are under the 120 watt Chinese LEDs. Moderate flow and so on. The tank has been up since last November.
Thanks in advance!
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