Hi,
I found these "bio balls" on ebay. Do you think they will work well as filter media?
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2386834252&category=20758
I found these "bio balls" on ebay. Do you think they will work well as filter media?
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2386834252&category=20758