I found that my city water has high nitrates and has been under investigation for years. luckily, there is a place called MR.WATER that suplies free reverse osmosis water with no nitrates.
My wife went to Hastings College. I always thought she was a little weird. But I always looked past the second head she had on her left shoulder. Its inner beauty that counts :Angel:
If I recall correctly, EPA says like 40 or 45ppm of nitrate is safe for water. As long as there aren't more restrictive local policies, and the city is under this limit, it's "High" but only relatively so.
Also, I've read that other then the most nitrate-sensative fish, ill effects aren't usually seen until you pass the 60-80ppm line. Again, I don't remember the source and may be wrong on this. The lower your nitrates are, generally the better. Ever think about adding a few plants to your tank?
Also, my tap stats: 0 readable ammonia/nitrites. 20ppm nitrates.
I've 1.0 chloramine (unbound it's 1.0 ammonia) and 7.0 nitrates. Never been a problem (just use Prime for the ammonia) and the plants love it. Means I have to worry less about dosing NO3.
What is a REAL pita are phosphates in the water. I have 2.0 and THAT I can live without!
Intresting, I work for my county water authority. Last year end test results average were :
Lead ppB - Max allowed 15 (AL), actual 2.5
Nitrates/Nitrites ppM - Max allowed 10, actual <0.2
Sodium ppM- Max allowed 500, actual 37
Zinc ppB- Max allowed 5000, actual 56
Chlorine ppM- Max allowed 4, actual 1.45
Copper ppB- Max allowed 1300, actual 100
Just a basic listing of what I have to treat at home. Because I live in the same county I work in. I don't know if those Max allowed numbers are State of Georgia or Federal.