Ferrite magnets

[IIDRYWATERII]

Hi are ferrite magnets reef safe with no eproxy or rubber around them?
cheers

 

[ScottJ]

Wouldn't the Iron in them oxidize in saltwater? I would vote no, not unless they are sealed.

 

[IIDRYWATERII]

Not sure I though impella magnets were ceramic

 

[ScottJ]

Not sure I though impella magnets were ceramic

I found this, maybe it will help answer.
https://www.reef2reef.com/threads/ceramic-magnets-from-hardware-store-reef-safe.233627/