Okay... I've been thinking about this for my current tank build. I'm trying to go for the cleanest look possible. I don't want to try to have to hide a lot with my rock work. I don't like the fact that a lot of people put the intake of the closed loop at the bottom because I'm going to have a sand bed (I don't want to risk sand getting into the closed loop or oceans motions). Some people have the intake strainer on the back of the tank (but my tank is 2 sides viewable so there really isn't a back. I don't really want to have to service the strainer often if it's near the bottom. So this is what I've come up with. This way, you get more surface skimming, and the hole in the side is just to make sure that the flow can keep up with the intake. If I choose to ever not use the closed loop, it doesn't do the tank any harm. Any comments or suggestions? I think maybe 2 returns through the bottom and 2 from the top using an oceans motions 4-way.
