In the process of planning a 720 gallon (8'x4'x3') plywood aquarium. I plan on using my current 180 gallon as the sump. I have a lot of bacteria house media that I want to use in a wet/dry section and k1 in a fluidized section. Anyone ever DIY or see any nice designs for a combination sump like this? Alternatively, I could always use the bacteria house media submerged but feel like a wet/dry set up for this type of media would be better (just a guess)?