So I have a 525 gallon tank setup that long term is going to be a reef tank. I started with dry rock and sand. I have added only prequarantined fish (TSM aquatics). I have a drilled 125gallon tank that I want to plumb into the system and use as a quarantine/frag tank, this is to perfectly match water conditions between the two tanks and would make life easier. If all the overflow water goes through a uv sterilizer at low flow rates, would that be good enough to kill ich, velvet, and other fish parasites? As well as most of the coral parasites? I would more likely buy pretreated aquacultured corals (top shelf aquatics and the like) to prevent coral disease and pest. But I have never seen a company sell corals from fishless systems that are guaranteed to not have been exposed to fish pathogens. Thanks so much guys and girls!