Bare Magnets Aquarium Safe? - Equipment - Aquatic Plant Central

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Old 07-22-2007, 01:51 PM   #1 (permalink)
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Default Bare Magnets Aquarium Safe?

Hey all,

I'm creating a moss wall by spreading moss between two layers of screen and attaching it to the back wall of the tank. I went to Home Depot and couldn't find suction cups, but brought home several hobby magnets, just like the one seen below:



There are no animals in the tank yet so I'm going forward with it, but since you're all out there it's also worth asking: Will these magnets be aquarium and shrimp safe?

Thanks!
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Old 07-22-2007, 02:58 PM   #2 (permalink)
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Default Re: Bare Magnets Aquarium Safe?

The magnets are probably alnico, an aluminum, nickel, cobalt alloy. If so, it doesn't seem that there would be a problem other than corrosion of the magnet. Rare earth magnets might be a different thing, since I don't know if any of those elements are toxic to plants or livestock.
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Old 07-22-2007, 07:02 PM   #3 (permalink)
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Default Re: Bare Magnets Aquarium Safe?

Just silicone the thing if you are weary of it's contents.
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Old 07-22-2007, 07:18 PM   #4 (permalink)
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Default Re: Bare Magnets Aquarium Safe?

You'd have to change water like, almost never for any apprecable amount of junk to build up in the water.

Polyurenthane them if you're worried. Silicone would be hard to get thin enough so the maget was still usefull I'd think.
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