Over night death

If a water change lead to deaths, there are two possibilities:

1. The new water had copper or another toxin at very high levels. Nothing you normally test for will kill corals after a water change.
2. You stirred up a bunch of nasty stuff and started a bacterial infection on the corals.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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