OMG finally somebody answer my question thank you so much I just got it a week ago my new NYOS 160 and will be used in a custom size aquarium, we got total water volume of 62 gallons and was seriously thinking that will be overkill with the 160 but based on your comments I am the happiest person in the reef community, my new acro garden will be home for 5 Anthias and two clowns, SPS dominated and heavy bio load!!! [emoji106][emoji225][emoji886]