Steel CO2 Cylinder

I may be purchasing a steel 15lb cylinder for my Ca Reactor.
However, the cylinder is listed for paint ball and beer tap usage.
So I was wondering if the cylinder heads differ?
Could I use it for my aquarium?
Thanks

 

they shouldn't be any different, they are pretty standard but in the off chance that they are a local welding shop, or maybe even a hardware store can get you an adapter

 

Thanks, I'm getting the tank for a pretty good deal ay $22-$25 (I have to bid)
But the guy is killing me with shipping at something like $40

 

the tanks are Heavy.. especially a steel one... I believe that rate.

 

Yeah I know they're ridiculously heavy.:-X

 

If it says that it's for a paintball then it will not fit a standard regulator. I used a paintball tank and had to buy an adapter. Just google it..i found one from a home brewing supply store.

 

you can also get adaptors at a good party supply store. We have a couple in our area that deal in balloons and all related equipment, they have any and every adaptor you can imagine. I'm sure there's a place like that in your area.