<a href=showthread.php?s=&postid=10139548#post10139548 target=_blank>Originally posted</a> by Psionicdragon
If you are talking about a denitrator that uses sulfur, then I use one.
The downsides are:
1) if improperly set up, it will smell worst than number 2 on steroids,
2) it can lower your ph to dangerous level,
3) it may not work