Is this design better?
I made the skimmer area a little smaller, pump area bigger and got rid of the one piece of piping.
The skimmer I am heavily leaning toward is the
Reef Octopus 4" Pinwheel In Sump Skimmer OCT NWB110
its dimensions are 10? x 6.75? x 19.75? so it should fit in the area. I...