When researching protein skimmers I ran across this statement on
Euro Reef's Website Quote:
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Want wet foam because you just cleaned the algae off the glass?? Raise the pipe up a bit.. Adding new water, food, live rock, resins etc., which often make a protein skimmer go nuts!!?? Just lower the pipe a bit.... THAT'S IT!!
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So, in other words you change the foam according to what's happening in the tank???