Oct 21, 2012 #1 C chiclidlover81 Aquarium Advice Freak Joined Sep 24, 2012 Messages 282 Location new york what is this?
Oct 24, 2012 #2 Andrew McFadden Aquarium Advice Addict Joined Dec 29, 2011 Messages 7,925 Location johnstown, ohio It's a sump
Oct 25, 2012 #3 huma-huma Aquarium Advice Addict Joined May 7, 2011 Messages 5,305 Location Hopewell Pa Google http://saltaquarium.about.com/od/wetdrytricklefilters/a/Wet-Dry-Trickle-Filters.htm