Yes, I do. Check it out:
http://reefkeeping.com/issues/2005-08/ebac/index.php
If you don't want to read the entire article, select the entire doument by holding ctrl button and clickin A, and then hold ctrl button and click F. This will allow you to search the document. Search for illegal, and the second instance will be what you are looking for. Otherwise, read the entire article. It is a good article non the less.