I fit the coralife 65 skimmer in my 10g sump, along with some chaeto. This is an old picture but you should get the idea. I added baffles to section off the middle area to grow chaeto, I also have some rock rubble in there. I have ordered the phoban reactor and should be installing it (trying to make it fit) this weekend. After I install it I will take a picture so you can see how I fit everything in my sump. I am using a mag 2 for my return pump, I just guessed at which one I should use, the flow is around 200gph from this pump which seems to work good for me.