The main filteration on the set up is an Aqua Ultima II 4000 and it goes to all the tank but as well all the tanks run into a 300 gallon sump that has several stages on bio and mech fitration and on the 1600 I have a other pump feeding it as well. All the tanks are plumped with several valves and still have all there sumps and original independant equipment that if I needed to isolate a tank, all I do is turn a few valves and turn the power bar on and the tank is running on it own.hehe! I can see that one Looks very good either way! clean, no noice, just enjoyable! What type of fb do you run? Is there a main filter system that takes all the tank?