how to tell if tanks tempered

[copperband]

ok so like the title says how can i tell if my 29 gallon bowfront is tempered or not thanks

[chapel210]

Well, the bottom of my tank says tempered glass....do not drill!

[MissT]

if you drill it and it shatters....
no, really you can call the manufacturer, but I would put money on it being tempered

[copperband]

ok i just wanted to no before i thought about getting it drilled

[lhoy]

if you drill it and it shatters....
no, really you can call the manufacturer, but I would put money on it being tempered

Holy smoke, when I saw the title of this thread my first instict was to be a smartalek and say "drill the bottom, if it cracks it is temepred." Misti beat me to it.

Lee

[MissT]

LOL, I'm sorry I couldn't resist

[Bill S]

IF it's an Oceanic, you can contact them and they will tell you.

[Ross]

Its probably tempered in the bottom and not in the back. Thats 99% of tanks.

[cavipower1]

over on nano reef i was told most tanks under 55 gallons are not tempered

[sharkboy]

How do they make tempered glass?

[gcantu]

If you can get a hold of some 'Polarized' sunglasses, put them on and look at the tank. if the glass looks wierd, then it is tempered. By wierd, I mean, if you can see blurry squares or dots within the glass then you are out of luck. That's another easy way...

[tiggamonsta]

How do they make tempered glass?

There is an explanation on the link below. Basically it is heated and then cooled rapidly.

http://www.crystallineimages.com/HT_temp.htm