[rjordan393]

That will work but you will need to make a metal bracket to keep it from falling down. I prefer the flat bottom design. If you have the right size drill and pipe tap, then you can make yours like mrkookm's. Now the only concern I have is his use of brass fittings for water supply and CO2 injection. I thought brass fittings were a no-no for aquariums. Brass fittings; would they not release copper ions.

I used a jaco elbow for my CO2 injection and a straight push-on fitting for my bubble counter. These fittings can be purchased at US Plastics. The water input and output connections are pvc.