Aluminium

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Hi
Can one use aluminium to support light tubes in a marine tank ore will it give something harmful off because of the salt water
 
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Mike

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I don't think it would last long, sea water is pretty nasty stuff - it would eat up Aluminium pretty quick.
 

viper357

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Many light fittings are made from aluminium, no problem that I am aware of.
 

viper357

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Isn't the aluminium that you buy at the hardware shop or wherever already treated?
 
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When Alu oxidises, it actually protects itself. Go gash a piece of alu and see the shiny metal under the Alu oxide. unlike iron, where the rust (iron oxide) falls away and the metal reduces.
 

Mike

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When Alu oxidises, it actually protects itself. Go gash a piece of alu and see the shiny metal under the Alu oxide. unlike iron, where the rust (iron oxide) falls away and the metal reduces.
I would agree, but salt water is very caustic, and will rot through many metals, who knows what will fall in your tank.
 
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@Viper, sometime but mostly not.

When Alu oxidises, it actually protects itself. Go gash a piece of alu and see the shiny metal under the Alu oxide. unlike iron, where the rust (iron oxide) falls away and the metal reduces.
True, but I wouldn't like the residue falling into my tank....
 

jacquesb

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Hi Wildbunny - and Welcome to MASA! I think that my main question would be:
WHERE exactly are you planning to use the Alimunium? Above the tank to keep the lights up? Or somehow inside the tank water?

If above the tank, then I would think that (as many has replied already) ANY form of either anodized aliminium would be OK - it could still get SOME form of white rust on it/in it though - at some stage.... BUT the chances of this getting into your tank is slim.

Trying to use aluminium INSIDE your tank I would think is a NO-NO......

Good luck!
 
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