Prizm skimmer question....
Is anyone familiar how these work? I have never used one and have just set it up in my tank.
I was wondering if the collection cup on top is suppose to be full of water?? I thought that the "foamy" stuff went in the collection cup.
Also makes quite a fuzzy/hissing noise... it is brand new, thought it would have been more quiet.
Any help would be appreciated.... thanks