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RE: Aquatic Plants Digest V4 #1618



Yes, you have to do the multiplication. I have the same test kit.

-- Stephen

> Subject: Optimum Nitrate Levels
> 
> Tom Barr says that we should target 5 - 10 ppm as an optimum 
> nitrate level.
> Is that 5 - 10 ppm NO3-N or 5 - 10 ppm NO3??  (My LaMotte 
> test kit reads in
> NO3-N -- must multiply by 4.4 to obtain reading in NO3).
> 
> Please help out a confused newbie lurker!
> 
> Thanks,
> Jill