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Old 05-19-2014, 08:54 PM
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Reef Pilot Reef Pilot is offline
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Today, after 3.5 years running, I decided to disconnect my Vertex UF20 bio pellet reactor. It certainly did its job at the beginning, bringing my nitrates from a high of 100 ppm down to zero. But have been running at zero for 2+ years now, and my bio pellet consumption has slowed to almost nothing.

The last time I had to add any bio pellets was about a year and half ago, and finally now they were pretty well spent, with only about 3 inches left on the bottom still tumbling nicely. I never cleaned or serviced my reactor in all that time either. Needless to say, it was well encrusted inside with calcium and other growth deposits. Had a hard time just getting it apart. Will let it sit in fresh water for a few days before trying to clean it. Hard to believe the water was still able to circulate and the pellets tumbling properly.

I will be testing my nitrates more frequently now, to see if there is any change. But I think my tanks (live rock and sand) were doing a good enough job of natural denitrification, and will watch to see if that continues.

Now what am I going to do with 2 large unopened 1000 ml bags of Vertex bio pellets that I bought on boxing day a couple years ago??...
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