jjh302
Aquarium Advice Freak
- Joined
- Aug 8, 2013
- Messages
- 347
Which holes are you speaking of? A 45mm bit will drill a hole for a 1" bulkhead, unless you use those heavy duty schedule 80. Now, will you be drilling for a return too, or coming over the top? I prefer coming over the top unless you have a rimless tank. Why drill another hole if you don't have to? I would just use one of these-
That's cool! I always thought there had to be two holes.