With your tank, being that it probably has a good amount of biodiversity, running the UV in low flow to kill parasites would be great. For me, though, I’d worry about sterilizing the copepods in the sump as they move to the DT (theory about them dying by the return pump has been proven to be wrong as most survive the trip due to their “armor”). More biodiversity. It’s been my motto as of late.Basically, I did what you are suggesting. I started my tank with several different types of bacteria with no UV but at the end of day 6 I added a good chunk of live rock from a well established tank to seal the deal and further bacteria diversity. I knew there was a good chance of aptasia but they also covered that in the videos saying using F aptasia works and seemed to be worth it.
I will be hooking up my UV Saturday though.
Right or wrong, it all made sense to me