[DIYbio] How do you prevent electrodes from rust?



Hey guys, I'm really new here, I built a small gel electrophoresis device but everytime I use it, the electrodes rust up like nothing I've ever seen, and I end up with a pile of metallic mush in the buffer solution. I'm just wondering how this is usually prevented? This has happened with steel plated screws as well as gold-plated electrodes.

Thanks guys

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