Hi. I have grouped Alvepora & Gonipora together before, no issues. I still watch for stinging just in case. My large pink Goni coral was extending nicely. Then it looked like possibly a tiny 1 inch Goni frag might be stinging it. It retracted in the middle (area near frag) at first . I moved the frag. But now entire large Goni colony is totally retracted & has been for 4 days. Any advice? See pics of it before (fully extended). Then retracting in one area. And now totally retracted.