I do 10-15% water changes weekly, religiously (right before I water my plants

).
I do not over feed either so my coral and water stay very clean.
The water itself looks good at the moment, but I threw some carbon in my canisters when I first set it up to get a good start on the initial water quality. I'm not going to change it out though. It makes a great place for bacteria to grow.
Quote:
the Diatom filter won't take out all the discoloration due to tannins from your driftwood.
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How much discoloration will it remove if not all? Other than carbon, what would take out the discoloration?
Thanks...