Then I am totally stumped. I hope someone else can figure this out, because I'm curious as well. Good luck!
nc_nutcase;3592752; said:What fish are in your 180 gallon tank with 60 gal sump & FX5?
Cleaning filters regularly and otherwise preventing waste from breaking down in the system will help keep nitrates in check.
Having zero nitrates at your old place without special nitrate removing filters seems odd. But since your not there anymore and that's not your situation anymore, no need for us to wonder too deeply on that one...
It's hard to say what level of nitrates is "acceptable" and what is "unacceptable". Most of us use something like 40~60 ppm as "time for a water change" numbers. Some have a higher number and some have a lower number. The lower the better... although as mentioned without specialty filtration or constant drip water changers, below 20 is difficult to sustain.
I compare nitrate build up to second hand cigarette smoke impact on humans. A mild odor won't have much impact on us at all long term or short term... constantly living in a moderate cloud of smoke may not have noticeable effects short term, but are likely to have long term effects... as the cloud thickens, the short term impact becomes mroe an dmore noticable, and the long term impacts become more and more severe...
ceewah;3592749; said:I was before... I had 20 Datnoids, 8 endlis, Chinese perch, 2 angel fish, 10 clown loaches, 1 Marble stingray..