WoW, that was a tall order! UV Sterilizers kill only free floating microbes when they are sucked into its chamber. Yes they do kill bacteria, fungi, viruses, paracites, and algea but only if its free floating its not like a cure all, for example fish with ick.
As for your live rock please don't bleech it . I've had really good luck with queen conches cleaning up live rock and sand beds, they even eat the nasty cyanobac. Perhaps you should consider getting a protien skimmer or check how much you are feeding fish/corals.