hey guys im rebuilding my pond and its gonna be around 2000 gallons or maybe more. anyways are these skimmers and filter falls good http://www.webbsonline.com/waterfall-filters.html the top one is the one and it recomends for ponds up to 1500 would that be fine? and the skimmer also the top onehttp://www.webbsonline.com/catalog/skim/index.html There will be 6 or 7 koi around 24 inches and a carp around 30 inches