Hey guys, I'm fairly new to pressurized co2 systems and I've hit a wall. I've recently ordered some HC and I want to make a carpet. High lights isn't going to be a problem but the co2 will be. So, I've intended to use a 20oz paintball tank and I ran across a "simple" to use regulator. Here's the link http://www.ebay.com/itm/Aquarium-CO...463?pt=LH_DefaultDomain_0&hash=item3f081c5a27 but if the link doesn't work. Please search up "Simple co2 regulator" on eBay. The first one should come up "Aquarium CO2 Simple Regulator - Diffuser Adjuster moss" So, my question is.. Do I need an adapter? It doesn't look like it has one in the photo.