Cheryl's 165 Gallon upgrade

[badAZZlars]

For sump size I would make it large enough so that you can do the amount of gallons for water changes that you are planning which means you don't have to remove water from the display, and also make it large enough so it can handle the water that flows back from the display tank during a power outage.

As for skimmers yes it would be nice to have a bubble king as they are of amazing quality but for a quarter of the price i'm running a bubble magus skimmer on my full SPS tank and its has been great.