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Re: Sugar eliminates nitrates

>     As one netter explained, "the sugar is used as a carbon source by 
>     denitrifying bacteria and speeds their ability to reduce nitrates." 
>     The recommended dosage is about 1 teaspoon per 50gal.

Run this by me again...
I thought that denitrifying bacteria converts nitrites to nitrates.
Nitrates are only removed using
 a.  plants
 b.  regular water changes
 c.  some anaerobic bateria which converts them back to ammonia.