Refugiums and algae scrubbers will only do so much in regards to reducing nutrients and controlling algae in the display. To be really effective, they need to be sized appropriately to the bio load of the system. Just pick one or the other, whatever is easier on you for maintenance or what you’re willing to do to care for it. I treat them as a way to introduce micro fauna to the display, help with pH dips at night and removing organics.
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