If you look at your picture you can already see the flesh peeling and receding. It already has 50% skeleton showing. The timing of the tissue releasing and the light going off was purely coincidence. That coral was allready in serious trouble.
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72 gal bowfromt mixed reef sps dominated, 25 gal mineral mud type sump/refugium Skimmerless
2x250 14000k phoenix hqi 2x96 pc actinic, 50x flow
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