I run radion gen3 about 12" above tank for tank mates I've got a snowflake clown, engineer goby, six line wrasse, harlequin shrimp and an algae blenny in the main display. In the refugium I've got two damsels. I'll put up pics of the fuge tonight. I kept it light on the fish and only went with the ones that have jobs to do. I run a chiller and 24hr skimmer and put the ebay leds on the fuge.