Thanks. I am trying to keep costs down, but I'll probably need a reactor in the future anyway, right? The way I'm trying to think about that is, in the long run I'll save money by avoiding obsolete purchases now. So, I guess I'll buy a reactor. Question, can I combine carbon and GFO in the same reactor, or will I need two?You know, a reactor is (IMO) the most efficient way to run carbon. It also has the added bonus of being able to add GFO to it as well. However throwing a bag of carbon in a high flow area of the sump will definitely work. So if your trying to keep to a budget, you can always add a reactor later.