Drilling 28G nano cube.

Has anyone drilled the glass on the back of a JBJ 28G nano cube? Going to do more research on it but wanted to know of it could be done. I don't know if it's tempered. I have this tank just sitting around and want to use it in my closed loop system somehow.



Also can I drill the sides of a standard 30G tank? Just want to add a frag tank and looking at all options.





Btw big noob here when it comes to drilling glass! HUGE NOOB! Lol!