I'm of that group, on a 10g the water changes are easy peazy. Takes about 10min at most.
I don't run a skimmer on my 29g cube and do weekly water changes and the tank is stable. It's also a fish only tank right now. I do have a small fuge built in back but I also overfeed seriously overfeed the tank. I have a mandarin and a scooter in it and they need special feeding. My nitrates are running about 5-10 which is actually a bit high but liveable considering the feeding.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.