Wow ... I've really created the proverbial storm in a teacup here
Anyway, harleyk/delgado ... what's the "other crap" that you mentioned. Is this something that you have read/studied or is it just a theory?
1. Apparently anaerobic bacteria will convert nitrates to nitrite and then gaseous nitrogen (from what I've read).
2. This is a topic of much debate, but I think it's best to keep them lower in both SW and FW aquaria (especially SW).
As I said before, I still think water changes are necessary, but I found this case interesting for the following reasons:
- the guy used to do regular water changes which resulted in many deaths due to the poor quality of his water.
- he copied his setup from a lfs nearby that had been running similar setups for years with many huge monsters.
- after changing to his current setup, his fish lived and were apparently healthier.
Either he is lying, or this is something that could really help our tanks. I'm interested in at least trying it out to see what effect, if any, it has.

Anyway, harleyk/delgado ... what's the "other crap" that you mentioned. Is this something that you have read/studied or is it just a theory?
1) Does it really detoxify nitrate, or just hide it from the tests?
2) What levels of nitrate are actually damaging to fish?
1. Apparently anaerobic bacteria will convert nitrates to nitrite and then gaseous nitrogen (from what I've read).
2. This is a topic of much debate, but I think it's best to keep them lower in both SW and FW aquaria (especially SW).
As I said before, I still think water changes are necessary, but I found this case interesting for the following reasons:
- the guy used to do regular water changes which resulted in many deaths due to the poor quality of his water.
- he copied his setup from a lfs nearby that had been running similar setups for years with many huge monsters.
- after changing to his current setup, his fish lived and were apparently healthier.
Either he is lying, or this is something that could really help our tanks. I'm interested in at least trying it out to see what effect, if any, it has.