1. gaboon

    gaboon

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    Started stripping my sump and came across this.
    [​IMG]

    None of the silicone in the display tank is blue so should I just make a new sump?

    If I pull the silicone apart it is blue all the way through. Can copper do that?
     
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  3. Mike

    Mike Retired Moderator

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    Copper is the most likely suspect, can you strip the silicone and redo it?
     
  4. gaboon

    gaboon Thread Starter

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    Ok, just phoned the chap I got it from, he says its from the water conditioner and guarantees me no copper was ever used? What you think?
     
  5. Mike

    Mike Retired Moderator

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    What water conditioner was used?
     
  6. Mekaeel

    Mekaeel Moderator MASA Contributor

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    even if it was copper that was used,its merely the dye that has remained on the silicone,after a wash,it is reef safe.talking from experience,as i converted an old copper tank sometime back into a reef tank with no ill effects.
     
  7. viper357

    viper357 Admin MASA Contributor

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    I know some of the white-spot treatments can discolour the silicone to a bluish colour.
     
  8. Kanga

    Kanga Retired Moderator MASA Contributor

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    Looks like something I have used in FW Methylate Blue when I was younger, silicone went Blue, will have to ask Palmaer or Midasblennie whats in that
     
  9. gaboon

    gaboon Thread Starter

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    Thanks, will give it a good wash. He said it was a tetra product, not sure which one
     
  10. Alan

    Alan Admin MASA Contributor

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    Water conditioners, medications, copper can all discolour silicone.
     
  11. gaboon

    gaboon Thread Starter

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    Good to know, I though only copper could do this
     
  12. Mekaeel

    Mekaeel Moderator MASA Contributor

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    and also remember that by washing it,it wouldnt remove the blue,but it will be safe to use
     
  13. Midasblenny

    Midasblenny

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    Most likely methylene blue was an ingredient in the conditioner, no worries.
     
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