Went on vacation and came back to a stinky apartment. Breaker was tripped and tank pumps and lights was off for a few days. All fish, shrimps, star fish, and most of my snails died. After pulling all of the dead. Did like a 50% water change and add bacteria. Most of the corals is coming back but my sps corals are completely white and have recently started to turn brown. How to know when bleached coral is dead. And how long to wait before pulling them out?
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