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Joined: May 2017
Posts: 66 Likes: 3
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OP
Joined: May 2017
Posts: 66 Likes: 3 |
Here is a 700 gallon tank that I am hoping to raise golden shiners in. I just found out about the zinc toxicity to fish. Should I drain and paint the interior or do you think algae growth along the walls will prevent zinc contamination? Thanks 
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Joined: Oct 2015
Posts: 2,433 Likes: 20
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Joined: Oct 2015
Posts: 2,433 Likes: 20 |
Use a heavy plastic liner?
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Joined: Jan 2015
Posts: 122
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Joined: Jan 2015
Posts: 122 |
I agree John. I think pond liner would probably work best.
 I Was Born Without Gills, Therefore I Fish!
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Joined: May 2017
Posts: 66 Likes: 3
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OP
Joined: May 2017
Posts: 66 Likes: 3 |
You don't think the paint would work or you just think a liner would be easier?
I'm not sure where to get a liner locally.
Last edited by Theeck; 05/08/17 05:19 PM.
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Joined: Oct 2015
Posts: 2,433 Likes: 20
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Joined: Oct 2015
Posts: 2,433 Likes: 20 |
Might be easier to just get a plastic tub. It's hard to adhere paint to galvanized steel. I was referring to making a liner out of a couple of layers of 6 mil plastic sheeting available at lumber yards.
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Joined: Jun 2012
Posts: 2,058 Likes: 8
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Joined: Jun 2012
Posts: 2,058 Likes: 8 |
I don't think galvanizing is toxic until it starts to oxidize and even then not that big of a deal. I would be more worried about the bottom of the tanks rotting out.
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Joined: May 2009
Posts: 5,751 Likes: 299
Lunker
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Lunker
Joined: May 2009
Posts: 5,751 Likes: 299 |
The Romans used lead pipes too. "The free zinc ion in solution is highly toxic to bacteria, plants, invertebrates, and even vertebrate fish" https://en.wikipedia.org/wiki/Zinc_toxicity
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Joined: Jan 2009
Posts: 29,021 Likes: 1011
Moderator Ambassador Field Correspondent  Lunker
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Moderator Ambassador Field Correspondent  Lunker
Joined: Jan 2009
Posts: 29,021 Likes: 1011 |
I would prep the surface according to the paint mfg recommendations. If I were doing it, I would pick the epoxy paint.
If you have to add salt to the water for any reason (stimulate slime coat, remove external parasites or any other reason) that will hasten the reaction with the zinc if it isn't coated.
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Moderated by Bill Cody, Bruce Condello, catmandoo, Chris Steelman, Dave Davidson1, esshup, ewest, FireIsHot, Omaha, Sunil, teehjaeh57
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New pond
by canyoncreek - 02/06/25 09:35 PM
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Koi
by PAfarmPondPGH69, October 22
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