Re: [Killietalk] Copper aquarium question

[Wright Huntley <whuntley at verizon_net>]

Ken Simolo wrote:
> From: AWurdSmith at aol_com
>
> Date: Thu, 23 Oct 2003 09:25:57 EDT
> Subject: Copper aquarium question
> To: killietalk at aka_org
>
>
> This week I listed a solid copper aquarium on eBay, item # 2354832197 
> and I have a question.  Since it is solid copper and has no glass and 
> the water is in contact with the copper sheeting, is there any danger to 
> the fish?  

Yes. If the water becomes at all acidic (often happens with age), the 
copper can be etched into solution and could reach lethal levels.



> Also, if it were coated inside with a water-based vinyl or 
> poly finish - and allowed sufficient time for drying & curing - would 
> this adequately inhibit the copper problem (if any) and would the 
> coating itself create a different problem?  I've used it (some) for 
> aqua-culture (plants) only and I don't want to kill or harm anybody's 
> fish.  Thank you.

The only safe finish, IMHO, is a two-part marine epoxy that does *not* 
contain any anti-fouling ingredients (and applied in multiple coats with 
setting up between them). The others will never be totally safe and may 
cause their own problems.

Sorry to be the bearer of bad news, but copper and fresh-water fish just 
do not mix well at all.

Wright

--
Wright Huntley -- 760 872-3995 -- Rt. 001 Box K36, Bishop CA 93514

           Mencken's maxim—every election is a sort
             of advanced auction of stolen goods.




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