Drill holes for overflow
I have a 50 g tank and would like to drill 2 holes for a herbie overflow and 1 hole for return.
1. What sizes of the holes should I drill? 3/4" or 1"?
2. Where can i get the drill bites to make the holes?
3. Where should the holes be located?
I also want to paint the back glass to black. Should I paint the glass first or drill the hole first?
I also need an overflow box. Where can I buy black acrylic in Vancouver area to make the box?
Thanks
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