Quick question. I just received my 9010 Skimmer and plan on using it in my refugium. Using it this way, is it mandatory to set it up with the water output pipe and sponge? Or, would it be OK to simply allow the water to return via the opening? I ask because I am really tight for space in this chamber of the fuge. Thanks for the help.
Setting up a 9010 Skimmer
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