A. A protein skimmer, or foam fractionator removes organics in your tank by way of mass air bubbles. When the water passes through the skimmer, the air bubbles it produces allows the chemical compounds of organics to attach to the bubbles and ride to the surface where this gunk is collected in a cup and disposed of. As far as cost, they can range anywhere from about $50.00 up to hundreds of dollars.
There are various types of skimmers and set ups; in-tank, hang-on-tank, in-sump, as well as free standing. To learn all about protein skimmers, what they are, how they work, what types there are to choose from, how to install them and more, read Don Carner's series, "A Layperon's Guide to Protein Skimming, or How to Get The Gunk Out", as well as refer to our Protein Skimmer Resources.
For product reviews on some of the most popular skimmers on the market, and to compare prices, refer to our In-Tank, Hang-On-Tank and In-Sump Top Skimmer Picks.
Another option is to make your own, which many aquarists have done because it is fairly simple to do. For do-it-yourself plans on all types of models, refer to our DIY Skimmer Project Resources.
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