Disagree Sorry, but there is a guy that for the last few months have been testing the clam theory.
First, they are tolerant to water temperatures (huge range like 35-83) Yes, they like it a bit cooler than warm, but they work wonders.
Second, they do lower nitrates. He had this great experiment he was running testing the trates everyday. Knocked them down from 60 (or so) down to zip!
They are impressive. I bought some from the LFS today. I will keep ya posted. |