How often do you change your ChemiPure Blue?

Westside Guy

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Nov 30, 2018
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Hallandale Beach, FL
I have a Red Sea Reefer 250 with a 54 gallon DT and an 11 gallon sump. I used to leave the ChemiPure Blue carbon bag in one of my two Red Sea filter media cups and changed it every 3 months.

Last month I decided to put the RS 225 micron thin mesh filter bags in both openings and I placed the ChemiPure Blue on the bottom of the sump next to the filters.

Is every 2 months a good time to replace it?

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