Metal In Tank Question 

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chops

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Can I use Stainless Steel or aluminum in a freshwater tank as weight for ornaments without affecting fish in a community tank?
 

Aquarist

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Hello Chops and Welcome to Fish Lore!

You can use stainless steel with no problems. Personally I've never thought about using aluminum in my tanks but I don't like the way it sounds Let's get more responses.

I hope you enjoy the site.

Ken

Here is what I use
 

SFwriter

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Aluminum you have to be careful with. If the aluminum is anodized, it should not oxidize. If you get a scratch you have exposed aluminum that may react. I'm not a chemist but I have worked with some aluminum tools and they had to be anodized to be used with anything that goes into a human body. Personally, I'd stay away from Al.

Steel may corrode. I used the end of a coat hanger to prevent my breeder tank from drifting into the hang on filter waterfall. The thing rusted overnight, but I don't see any impact on the fish. I also use binder clips to weigh down slices of zucchinI for my algae eaters, these emerge uncorroded.
 
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