Question: How old can a tank be?

[jon.smolders]

I have been using the same tank for 14 years. On and off too so the silicone has gone through a lot of dry/wet cycles. It still seems fine, other than some scratches on the glass.

[hillbillyreefer]

My 120 was 22yo in June. Still looks like new except for one minor scratch an the front glass.

[Dearth]

I have a 33 gallon that is 17yrs old and no issues and I had a 10 gallon that I had from childhood that was still in great shape when I sold it 2 yrs ago.

Then again I've seen tanks that split 3 days after filling with water.

[monza]

6 years or so then it's lost sleep