GO high-efficiency protein skimmer 200 are all equipped new-designed skimmer pumps,optimized the Water/Air ratio, improve the efficiency of protein skimmers,this brand-new designed skimmer pump can cutting bubbles at a higher RPM than a traditional pump,so it can make the bubbles fine and smooth. The pollutants in water are easily attached by the bubbles because the pollutant often have a polar tail,so that these pollutants will pull up by the bubbles,the smaller the bubbles formed,the smaller pollutants can be take out of the tank. An excellent protein skimmer can take more than 50% DOC before DOC broke up into Dissolved Nitrogen.
GObrand-newprotein skimmer 200can adjust reef tank size from90 Gallon to 210 Gallon.
Most accessories of two size protein skimmers are universal,you can easily upgrade your Model M to Model L through buying a BIGGER skimmer body, you have no need to buy a new skimmer to up grad any more.