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#5
10-30-2013, 12:52 AM
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I would avoid it all together, just go and get a cheap used tank or a rubber made.
If you are using an alloy and even to an extent pure (ish) aluminum, it can contain copper, zinc, manganese, and a whole host of other element. Last edited by windcoast reefs; 10-30-2013 at 12:55 AM. 
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