red sea phosphate pro test kit

my rodi shows zero phosphates. but when i mix a gallon of saltwater i have .12 phosphates. i changed my phosguard and i still get .12 phosphates. but rodi remains at zero.
 

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%
Back
Top