I have referenced this article (and the foot noted research paper) a few times, and after mommie1 has reminded me that I need to post the source (and send her a copy after forgetting her first request - sorry - here it is.) I will add that this is a new thread since the orginal thread where I was asked to supply the article is now closed (?); hence creating this new thread.

So, here is the article and it is a bit long but well worth reading. I hope it ends some running issues; regardless of this paper's ideas/conclusions, adding 1 ppm, or 2 pp, or even 6 ppm will get the ammonia cycle to run. The issue is that this may impact the cycle that converts nitrite into nitrate but than again, people's tanks differ, as may their results.

Here is the site:

http://www.tropicalfishkeeping.com/f...quarium-74891/