I just bought an Empire Co2 Tank and a regulator for my 6 gallon nano tank. My problem is that some work needs to be done with the connection between the tank and regulator. To begin, I need to add an adapter to change it from a paintball tank to CGA 320. The real challege is the angle of the regulator. It is made to be installed on a horizontal outflow, but the paintball tank is verticle. This means the bubble counter is horizontal. I've seen people simply place the tank sideways, but I wouldn't feel completely comfortble with that knowing some people say it lets liquid Co2 in the regulator. The only solution I can think of is an elbow piece but they don't seem to be very common. I found this one, but I really have no idea if it would work. Any feedback is appreciated. Thanks.