On my 75 gal I have a seaclone 150 skimmer. It seems to be working great. My parameters are all good Nitrate 0, Amonia 0, pH 8.2, Salinity 36ppt, phosphate 0. My question is do I have a problem? My skimmer produces only @ 1 cup every week or two. The skimmate is a dark soupy mix nasty smelling. I keep reading about all the problems guys are having with salinity because thier skimmer removes so much skimmate. Is mine producing too little. I have heard the term dry skimmate I assumed it meant bubble production with little water loss. Is that so? Is my skimmer under producing?