Approaching total coral wipe-out

[Myka]

Sorry to hear about your trouble.

Have you tested for stray voltage? How exactly are the corals dying? Sliming? Slowly receding? Quickly receding? Is the water or cloudy or has it been?

I would be taking both biopellets and GFO offline until the tank settles down. I would continue to run carbon. Which brands to you switch from and to?