Information about what a protein skimmer is, how skimming or foam fractionation works, the different styles of skimmers there are to choose from, and the various ways to install one in a saltwater aquarium or reef tank system to filter the water.
Top Hang In/On Tank Protein Skimmers
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Read reviews, compare the features and prices for Hang-In/On-Tank protein skimmers your Guides have chosen as their top-pick choices. 
In/On Tank counter current protein skimmers were the first type of skimmers to appear in the saltwater aquarium hobby. They were simple devices which used an air pump driven airstone, the bubbles from which collected proteins and deposited them in a collection cup. These skimmers are the least expensive and easy to install and operate. With in-tank skimmers, there are no worries about wet floors.
Top 10 Skimmer Picks: In-Sump Models
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Read reviews, compare the features and prices on In/On-Sump protein skimmers your Guides have chosen as their top-pick choices.
In-sump protein skimmers offer the widest variety of skimming methods for aquarist, today. Air, venturi, spray bar, needle wheel and downdraft driven models are available from a number of manufacturers. Sump mounted skimmers are much easier to configure with use of mechanical and biological filtration hardware, which makes them quite versatile.
