Quote:
Originally Posted by reefwars
i reseal any tank i get regardless of its age or who owned it 
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I can certainly see someone who is handy being able to replace silicone. I tried it, once. It didn't turn out very pretty.

I'm pretty sure there is no way it would have leaked, though.
I've been told that when glass ages beyond a "certain point" (whatever that is) it becomes a real challenge to drill.
Quote:
Originally Posted by reefwars
like when buying anything its buyer beware, research your buys and ask those with knowlege to double check your potential purchase 
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Is there anything that can be done to determine how old a tank really is? That has been my huge hold-up in buying used. Well, that and the answer "I don't know if medication containing copper was used in it, I bought it used."