Make sure the rams are one female and one male. What brand is the "live freshwater" substrate? You probably won't need that AND the gravel.
One of the sponsors sells an adapter to use paintball CO2. Can't remember which one off the top of my head though. Most people use 5 or 10 lb. aluminum cylinders since they last longer. You can find them locally at any welding supply (Airgas, etc.)I am running 48 watts on the 14BC. It is about 3.4 WPG.
Would I be able to use a Paintball CO2 bottle or is there a specific one I need to use? Also, would I need to get a monitor of some kind for it?
On the Excel, how does it work? How much would I have to do to keep my CO2 levels at the proper level?