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Old 08-12-2004, 12:24 AM   #11
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There are tons of rumors in this hobby, just as any other. Personally I am with scuba on this one. The "rumor" that copper bonds to silicone is just that. You wanna give it a try? Fill after a good cleaning and test for copper. That should solve that, yeah?
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Old 08-12-2004, 03:10 PM   #12
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heres my other thought on this ! if silicone does absorb copper then why wouldnt tanks leak ! if it can absorb copper then it would absorb water which would make it leak
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Old 08-12-2004, 03:34 PM   #13
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heres my other thought on this ! if silicone does absorb copper then why wouldnt tanks leak ! if it can absorb copper then it would absorb water which would make it leak

true dat!
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Old 08-12-2004, 05:20 PM   #14
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Well if it is true, it's also said it can leech out at any time. So your tank may be doing great now... but lets say it's true. Theres still that chance isn't there¬Ņ?
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Old 08-12-2004, 05:34 PM   #15
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Substances tend to flow from areas of higher concentration to areas of lower concentration. Given the assumption that silicone can absorb copper, It can probably release it to an area of lower concentration as well. I would think that with time and water changes the copper would be reduced to levels that would not be toxic to inverts.
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Old 08-12-2004, 08:31 PM   #16
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Ich is less sensitive to copper than most inverts. Why not just use it as a quarantine 'cause everybody needs one of those? Under $25 gets you a new 20 gallon in my area. Why even risk delicate frags when it's not absolutely necessary?
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Old 08-13-2004, 03:22 AM   #17
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Unless the tank was dosed multiple times with high copper concentrations I dont see the harm in it, but thats just me I could be wrong.........
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Old 08-13-2004, 03:24 AM   #18
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Ooh, I'd say be safe and sure and buy an new tank- they sell for about $24 at Petsmart here... not that expensive :|
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Old 08-13-2004, 06:39 AM   #19
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BTW, just because the copper may stick to the silicone doesn't mean it will absorb water too.

And I just remembered someone who said they had bought a used tank and had never personally used copper but their tank always tested for copper so, if the test kit was working right and there was no other source of copper, then that's reasonable cause for doubt IMO.
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Old 08-13-2004, 08:29 AM   #20
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I wonder if Silicone does absorb copper. I've heard it does, but like you said, no real proof. I know it will stain.
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