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Granular Ferric Oxyde GERMAN HIGH CAPACITY- Bulk GFO (1LBS)

Granular Ferric Oxyde GERMAN HIGH CAPACITY- Bulk GFO (1LBS)
 
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BLKGFO

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$21.99
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  • As with all ferric oxide media, alkalinity levels may drop when used. Be sure to monitor alkalinity and adjust as needed
  • Rinse before use

 

What is the difference between regular and HC German GFO? The main difference is that HC is roughly 1.5 times more effective at removing PO4. It is also much more dense, thus requiring more flow than regular GFO. It also withstands more flow before grinding down to a fine dust. Low grade GFO quickly pulverises with too much flow.

Although this is HC GFO, excessive tumbling my still cause it to grind / dicintegrate and send GFO dust into your sump / tank. Unlike biopelets GFO must NOT excessively tumble in your reactor. Tumbling will cause some grinding.