sump design

Hello fellow fish keepers I am making a 130 Gallon tank dimensions are Length 66 inch, height 24 inch, width 20 inch. ( I know the dimensions are odd but that's the space I have and I want a tank there) And I plan on keeping 10-12 discus in there with a few other smaller fish But my...

I'm in the process of building a wet/dry sump and am looking for a submersible pump that can handle 4,000 to 5,000 gph, while also being relatively quiet (will be operating in a living space) and energy efficient. Obviously, reliability is a plus. Anyone have any suggestions?

Is it okay to stock with any filter media (seachem denitrate to be specific as there would be lesser flow) on section/chamber of the return pump?

I'm new on here so hopefully I posted this in the right place. my wife got me hooked on this hobby and I've been tending her tanks for a while, however, this will be my first. I'm currently setting up my new 180g tank and am trying to design a sump that will be more than sufficient for the...