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#7
January 20th 05, 03:04 PM
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Mario wrote: My apologies -- N02 (should be NITRITES), I know that N03 are NITRATES. and I have a background in chemical and environmental engineering . . . Mario I consider anything over 40ppm for nitrates too high - preferable is less than 20ppm Ammonia & Nitrites I'd say any higher than 2ppm and you want to be doing water changes. Obviously you eventually want ammonia and nitrites to be 0ppm. 
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