Definition: Biowheel is a rotating pleated structure over which a stream of water is directed as part of a biological filtration system. Nitrifying bacteria grow on the biowheel and provide biological filtration.
biowheel
By Shirlie Sharpe, About.com
Suggested Reading
Explore Freshwater Aquariums
Must Reads
About.com Special Features
Home Allergy Center
Banish mess, reduce allergens, and maintain a clean, healthy home. More >
Home Improvements Made Easy
Inspirational ideas and expert tips to help you pull off your next DIY project. More >
©2009 About.com, a part of The New York Times Company.
All rights reserved.