To U.V. or not to U.V.

[SeaHorse_Fanatic]

Watch out for ozone though because unlike UV sterilizers, ozone can get into your tank & kill off your fish (this has happened to another Canreefer). UV works best as a preventative or at the start of an outbreak of ick IME. If the ick is already really bad, then the fish is usually a lost cause unfortunately.

Anthony