is it possible to cut tempered glass???

[K_S_W_I_S_S]

i want to try to cut 2 20 gallon tanks and silicone them together.... i have heard people say that this might not be a very good idea, but i still would like to try it...

[TwoTankAmin]

No you cant cut tempered glass- but 20s are not normally tempered.

The problem you will have is with the frame and top.

Buy a bigger tank will be easier, faster and likely cheaper.

[K_S_W_I_S_S]

i live in a small town where big tanks dont come easy.... i lucked out and found a used 125g for 250$. and i have like 4 10's and 3 20-40's.... and all im using is my 125 and my 55.

[NJ Devils Fan]

You should try to make like one giant tank out of all the little tanks. now that would be cool.

[slipknottin]

Nope, no cutting of tempered glass. The glass is under tremendous pressure and any cracking or grinding will lead to failure either when cutting or soon after any pressure is exerted on the glass.

[nvision]

i believe some 20g tanks have a tempered bottom...

think mine does.

[RENEGADE]

but wouldn't you just be cutting out the silicon not the glass?

[K_S_W_I_S_S]

no, i wanted to just leave about an inch around the hole so it would be more stable

[7Speed]

I busted a 4x8 sheet once. I thought I could use a $100 glass cutting bit to do the trick. The entire thing shattered and it took me 2 hours to clean the mess.

[superjohnny]

I worked as a glaziers assistant for a while in my younger years. We were replacing some windows in a condominium in Destin, Fl. These were high-dollar, penthouse condos mind you. I blew out 3 6'x9' 1/4" double insulated storm windows.

Needless to say those aren't cheap windows and made a real mess to clean up.