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Old 03-05-2015, 10:56 AM   #1
xfire
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Default Water turned brown after adding Sea Chem De Nitrate

Dear Shifus,

In order to reduce the nitrate level, I added Sea Chem De Nitrate into the sump filter. However, the water turned brown (very brown) the next day. After a few days, it turned back to colourless. One week after, the water turned brown after I added some bacteria powder. Should I remove the De Nitrate or wait till it turn colourless again. I do not understand this. Hope that someone can guide me here..

Thanks!

X.
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Old 03-05-2015, 11:12 PM   #2
mnhash
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I've 4L of Denitrate in my filter and never had that issue before.

Just a piece of advice, Denitrate is only effective if used in a slow flow environment. Otherwise, it would not have enough exposure time to allow the anaerobic bacteria to digest the nitrate.
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Old 05-05-2015, 09:00 AM   #3
Hydher
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always practise rinsing new medias.

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Old 15-05-2015, 01:07 AM   #4
AdamC
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Why resort to adding commercial products when you can simply do WC to reduce the nitrate level?
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