First of all I'd like to say how happy I am that I found you guys (and gals).  I am getting ready to try my hand at this AP thing. I really plan on utilizing this group as much as possible. This is my proposed plan. I have an IBC 275 gallon container. I have cut the top 14" of the tote to use as my GB (12" gravel media) and plan on using the rest for my FT.  I am setting this all up under an open…