Anyone else have toilet trained fish?

My half black mimic tang does the same. Also front left corner
 
My Caribbean blue tang knows when my Gem is about to poop, they both head to the left front corner, Gem poops, and the Caribbean eats it....
 

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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