When does a tank crack/chip become a problem

[Wailua Boy]

That type of crack is referred to as a scallop

 

[Vampire fish]

I actually called the guy I got from to question him about it. He said he had that there for 3 years while using it,(he) obviously doesnt think it will cause me problems.

 

[Vampire fish]

I'm just gunna sell it so I can sleep at night, its not hard to find another 125 gallon around here for cheap apparently.

 

[viejafish]

When my 30 failed at the chipped area, it was not a slow leak but cracked through the glass with a sudden flood release.