Tank age and integrity question - The Planted Tank Forum
 
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post #1 of 9 (permalink) Old 05-07-2012, 08:07 PM Thread Starter
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Tank age and integrity question

Hi all,

Had a friend over looking at my tank, he asked me a question I had not really considered and couldn't answer. So I pose it to the group for some feedback:

How long do (glass) tanks last? Primarily, how long does the silicon hold up before if begins to break down and lose integrity? My tank is a 90G, but is only about 6 yrs old, and has been full of water and inside my house.

On the other hand, my sump is built from a 20G, is over 10 yrs old, and spent a few years in the garage before I got the 90. No leaks yet, but my buddies question go me thinking........

Any thoughts????

Thanks

Adam
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post #2 of 9 (permalink) Old 05-07-2012, 08:46 PM
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I think it would depend on the quality of the silicone, and how the silicone was treated. If the silicone was ever nicked or scraped it would probably start peeling after a while. But under normal conditions I think that an aquarium that is set up properly( Level stand, Rims Intact ) it will last a life time.
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post #3 of 9 (permalink) Old 05-07-2012, 09:10 PM
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I know a guy that's had the same tank set up as a reef for over 30 years, has never been drained (completely, anyways, water changes and such), never been empty, and never been resealed.


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a 40g reef
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post #4 of 9 (permalink) Old 05-07-2012, 10:07 PM
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Tank Age & Integrity

Quote:
Originally Posted by 30king View Post
Hi all,

Had a friend over looking at my tank, he asked me a question I had not really considered and couldn't answer. So I pose it to the group for some feedback:

How long do (glass) tanks last? Primarily, how long does the silicon hold up before if begins to break down and lose integrity? My tank is a 90G, but is only about 6 yrs old, and has been full of water and inside my house.

On the other hand, my sump is built from a 20G, is over 10 yrs old, and spent a few years in the garage before I got the 90. No leaks yet, but my buddies question go me thinking........

Any thoughts????

Thanks
Hello 30...

I bought a tank on Craigslist about six years ago and it was 16 years old then. So, as long as you set up the tank and level it properly and keep it up and running, it should be good for a very long time.

B

"Fear not my child, just change the tank water."
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post #5 of 9 (permalink) Old 05-07-2012, 11:12 PM
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The problem with this question is that you will get a lot of anecdotal evidence, with a reliability that is doubtful. Just because it worked for BBradbury there is no guarantee that it will turn out the same for you.

Obviously this becomes a larger problem with larger (taller) tanks due to increasing water pressure.

Do a sane risk analysis... What IF the tank fails one day? Would it be devastating? Or no, not a big deal? Look closely at the seals... is algae creeping underneath places that should be bonded tightly with silicone?

Not trying to scare you. Especially if you know that you own a quality tank, made with quality silicone, and always kept it away from sunlight and such, it should last a long, long time. Would be really interesting to learn from folks whose tanks failed due to age. Maybe there is no such thing.

I have taken apart old, old tanks that were treated badly, and it was still amazing how well the silicone stuck to the glass. So there...


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post #6 of 9 (permalink) Old 05-07-2012, 11:20 PM
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the key is keeping the silicone from drying out from improper storage or use.
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post #7 of 9 (permalink) Old 05-07-2012, 11:27 PM
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I have a 35 that sat empty for atleat 10 years and the store it came from has been out of business for 15 so it's somewhere between 20/15 years old and other then a few scratches on the glass is holding up great.
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post #8 of 9 (permalink) Old 05-08-2012, 01:02 AM
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My 75g while I originally bought it as a planned planted tank that fell through and was a bearded dragon tank for 2 years before I set it up again as an aquarium.

Like Wasserpest stated, group answers cannot be relied upon because of the vast differences from case to case.
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post #9 of 9 (permalink) Old 05-08-2012, 04:39 AM Thread Starter
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I think Wasserpest hit it on the head, the direction I intended this thread to go.

What to look for in a "failing" tank before catastrophe. I guess only those who have experienced this sort of thing or had a near miss can truly answer this, but I'm sure the group can brainstorm look out signs.

Thanks for the replies.

Adam
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