Copper power or cupramine?

which to use? What is easier on fish?
General consensus from reading in this forum is Chelated (copper power) is easier on fish than Ionic (cupramine) copper...I've used mainly cupramine and have success with it. I recently switched over to copper power and lost a couple of fishes (might be due to disease then the copper itself)...
 

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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