I know that you can you can buy an adapter that allows you to use paintball CO2 cylinders on standard regulators. However, is there a way to do the opposite? The Aquatek Mini and the Premium are the same price. With my 20 gallon tank, I don't need a large CO2 tank. A 20-24 oz. paintball tank will more than fit my needs. However, I do plan on upgrading to a large tank somewhere down the line and would like to be able to retrofit the Mini to a standard CO2 tank if that's possible. If not, then I'll just go with the Premium and buy the adapter. Thanks.