The skimmer water comes directly from the overflow through a Mag7. I had to custom cut all the inlet pieces or the plumbing wouldn't work with the width of the sump.
The closed loop on my last tank was a dart, I figured it would make a good return pump on this tank.
Before I spend a week filling with RO/DI to learn I need to drain the tank...... I am just going fill it with the hose again.
Everything ran great, I drained it and used the time to see what the PVC racks I made would look like.