Setting up a 75 gallon reef...Help? Advice? equip pics added

[Doug]

Brad, your feeding a 1.25in. overflow with a Mag12. I use two the same for mine. When I run a single it seems like a lot of flow for it, although it does handle it.

PC, I would also consider an in sump Coralife super skimmer for the system. Great needle wheel skimmer at a decent price. Of course if money is freely available, , Euroreef is the top quality model. I currently see a couple of used ones in the buy/sell, both being good for your system, with the larger CS 6 being better.