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Unread 06/10/2019, 08:38 AM   #2
rvitko
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Join Date: Apr 2000
Location: Austin Texas USA
Posts: 35,785
The magnet cannot rust, it is ceramic, the most probable would be that some iron is stuck to the magnet, GFO dust is a common source and this can just be cleaned off. From the photo you are missing the rubber part of 3005.740.


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Roger Vitko
Tunze USA

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Current Tank Info: 210 gallon planted tank with Altum Angelfish
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