should be generally safe, but you can try hydrogen peroxide.
or mild bleach then rinse it really thoroughly with anti chlorine.
Just bought a 2nd hand filter, how to prepare it for my tank?
The existing filter (and media) might contain foreign bacteria that might be present in the x-owner tank. Fishes in the tank might be immune to them. But my fish might not...
What to do? soak the filter media in Melafix, salt, anti-biotics? how about Boiling water?
Need some constructive suggestions... Thanks
Baby Steel!
should be generally safe, but you can try hydrogen peroxide.
or mild bleach then rinse it really thoroughly with anti chlorine.
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