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Jan 10th, 2023
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Joined: Mar 2009
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Lunker
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OP
Lunker
Joined: Mar 2009
Posts: 814 |
Has anyone ever raised fish in galvanized tanks? I know that some advise against it, but others seem to think it doesn't matter.
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Joined: Dec 2009
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Hall of Fame 2015 Lunker
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Hall of Fame 2015 Lunker
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Fish are susceptible to Zinc poisoning. Generally, one would coat the inside of the tank with a suitable epoxy to alleviate this problem. My lab Luna would never drink water out of a galvanized bucket. She also would not eat processed meat's like hot dogs. I figured she knows something that I don't! Some of Cecils tanks are galvanized. He has a fun time with epoxy  Much cheaper and less hassle to use plastic tanks. Most of them are made from Polypropylene or Polyethylene, which are fish safe out of the box. I wish I never bought that stock tank. It's gonna take a day to deal with, another 120 bucks in epoxy, and I hate Toluene buzzes 
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Joined: Mar 2009
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Lunker
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Yeah, but I already have the tank.
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Joined: Dec 2009
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Hall of Fame 2015 Lunker
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Hall of Fame 2015 Lunker
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So do I, so I guess, it's deal with it!
It will work just fine with proper prep. It's extra work, one thing I am not a big fan of anymore. I'll probably just pay my brother to do it. He knows how to prep for, and shoot epoxy.
Last edited by JKB; 08/12/12 06:56 PM.
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Joined: Mar 2009
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Lunker
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Lunker
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Can you recommend an epoxy product?
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Joined: Dec 2009
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Hall of Fame 2015 Lunker
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Hall of Fame 2015 Lunker
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Sherwin Williams Tank Clad. It's NSF approved for potable water and is Inert after it cures. It may be on the high dollar side, but quite a reputable product. Pretty Tough Stuff!
Aquatic Eco Systems sells an epoxy for tanks. I believe Cecil used it in one of his tanks. Have to ask him about that.
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Joined: Aug 2006
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Moderator Ambassador Field Correspondent  Lunker
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Moderator Ambassador Field Correspondent Lunker
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Hopefully Cecil will see this. One of the Pond Boss advertisers sells a safe epoxy just for aquaculture purposes. I can't find the links, and I'm reluctant to say which company I believe it is.
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Joined: Dec 2009
Posts: 6,692
Hall of Fame 2015 Lunker
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Hall of Fame 2015 Lunker
Joined: Dec 2009
Posts: 6,692 |
Hopefully Cecil will see this. One of the Pond Boss advertisers sells a safe epoxy just for aquaculture purposes. I can't find the links, and I'm reluctant to say which company I believe it is. Most epoxy coatings, once cured, are safe for fish. Difference being their life span, and how well they hold up under conditions. Ken, It's Aquatic Eco Systems. And that ain't real epoxy!
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Joined: Mar 2009
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The PondGuy sells it, but it's like $75 a quart.
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Joined: Dec 2009
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Hall of Fame 2015 Lunker
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Hall of Fame 2015 Lunker
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At 75 bucks a quart, you are getting screwed! Usually about 120 bucks or so for a two gallon kit with a gallon of reducer.
Trust me:
My respiratory system thanks me every day I don't mess with this stuff!
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Joined: Aug 2002
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Hall of Fame Lunker
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JKB is right on the money on what he tells you.
Yeah I used the epoxy and primer that AES sells. I also acid treated (muriatic acid) before applying the primer. It's holding up really well but I would never buy a galvanized tank for aquaculture. It was given to me so I had no choice.
My favorite tank I have is a circular white water storage tank 4 feet in diameter and 2 feet deep that was cut down for me and it only cost me $100.00 if I remember right. Very smooth surface with no ridges for uneaten feed or feces to get trapped in like some of the stock tanks.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
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Joined: Jan 2009
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Moderator Ambassador Field Correspondent Lunker
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Moderator Ambassador Field Correspondent Lunker
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If you know someone that media blasts, the mild surface texture will give the epoxy a better surface to adhere to than an acid wash, but you do with what you have available to you.
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Joined: Dec 2009
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Hall of Fame 2015 Lunker
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Hall of Fame 2015 Lunker
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Good point esshup. I plan to get some coarse sandpaper for the DA sander and go over it, then scrub it with good old fashion Ivory dish soap. The tank has been outside now for a couple years "getting aged" , and no, you do not have to do that. I have never had any issues with SW Epoxy adhering to steel, even without primer. The Repcolite stuff I put on those two 75 gallon tanks, let's just say %&%@%$#&^ 
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