Heres a little gif I made showing how DOC (Dissolved Organic Compounds) are removed from your aquarium using a counter current protein skimmer.
Water is pumped in from the aquarium via a water pump placed either in the sump filter or the aquarium and directed into the skimmers’ intake. Air is pumped into the skimmer via an air pump and an air tube. The hose is run down inside the skimmer from the top, at the bottom of the tube there is a lime wood air stone. When water rushes in from the top of the reaction chamber, it collides with the air bubbles rising up from the bottom. The DOC’s attach themselves to the air bubbles and are carried up to the top of the skimmer. The bubbles with the DOC’s attached then spill over the top and into the collection cup. Enjoy!







The bulb is a standard compact fluorescent bulb I got from Lowes. its a 6500K and only cost 6 bucks.


















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