How to tell if your tank can be drilled?

[serratus]

Sweet, I think there is a small scratch on the glass. That should mean it's not tempered then? I also have a polarizer that I can use to test it. Thanks for the tips

[fencer]

Polarizer should work. But any new tank over 50g usually is tempered. Also if the glass looks thin for that size of tank then it is probably tempered,

[sphelps]

Originally Posted by serratus

Sweet, I think there is a small scratch on the glass. That should mean it's not tempered then? I also have a polarizer that I can use to test it. Thanks for the tips

Not at all tempered glass can be scratched. What's the size and brand of the tank?

[BlueAbyss]

Originally Posted by sphelps

Not at all tempered glass can be scratched.

Hmm, okay I was told a while ago that when scratched it will shatter or spiderweb. I guess I was misinformed, sorry