Drilling my 65 gallon

[Captain Ron]

Wodering where I should drill my 65 gal and how many holes.

 

[xxxAngeloxxx]

Thats a risky move imo, but i would go with the back of the tank.

 

[rkaragozler]

I would drill the back as long as you can confirm it's not tempered. Most tanks only have the bottom tempered, but you never know. As far as holes 2 would be the ideal setup, 3 even better depending how you would like your drain and returns positioned.