i have always run the skimmer, even when i had the various turf scrubbers. some times with ozone and sometimes without.
what motivates me is it seems a more natural approach and removes PO4 which a skimmer doesn't. less electricity i think.
my next system i want to have the tanks from the garage in a greenhouse. then they could be really great refugiums, cheatomorpha, etc.
it would be great to only have to use electricity to move the water, no skimmer, no lights.
my fish were all in one of the 250 gallon tanks in the garage and fed a lot. but the other tank was a deep sand bed and a few corals, no fish.
no algae scrubber or macroalgae. nitrates have been 0.2 ppm for months. and PO4 was staying under 0.10ppm not as low as i would like.
i have really enjoyed the fish back in the display tank these past few weeks. it's weird how much pleasure we get from watching the fish. it's also weird to spend a few hundred dollars on fish and more on corals, compared to how much money we spend to house them and try to keep them alive and healthy.