180 Gallon Tank Set up

[Alex]

Love to get some feedback...

Where is the most appropriate or effective area to drill on a 180 gallon fish tank for a sump set up; top back, underneath side, where?

I've been watching too many diy youtube videos and seeing too many options which has me confused.

please HELP and tell me what would you do or have done?

Alex

 

[Jmty]

i will do the bottom to eliminate the eye sore and extra parts

 

[verbal]

Be really careful on bottom drilling that the glass is not tempered. If you don't have a tank yet - you might want to get one that comes with overflows.