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Unread 11/25/2017, 10:21 PM   #4
Reef Guy 04
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Join Date: Dec 2006
Location: Avon, OH
Posts: 45
If the impeller is blue, it's either a Nano or Koralia 1. If it's black, it will be a little more difficult to identify. Like dentrite said, remove the impeller and try to match it up to one on Amazon.

What is wrong with your current impeller? Only asking because I have a Koralia 1 that stopped working. After disassembly I found a small piece of plastic that attached the magnet to the plastic part of the impeller was broken. I just used a little super glue to glue the magnet to the impeller and it works good as new. Quick fix saved me $20. Just be careful not to glue it to the metal rod it spins on or seal the hole that the rod passes through.

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