<a href=showthread.php?s=&postid=14129878#post14129878 target=_blank>Originally posted</a> by hahnmeister
With some of the newer 'high efficiency' skimmers and how they work (ATI bubblemaster, RE bubbleking, CoralVue Extreme/Pro, ATB Cone, KZ, etc.... you get the picture) vs. more traditional designs, the recirculating option provides little to no performance advantage as far as 'extended contact time' goes.