Originally Posted by iamntbatman
Is this going to be a planted tank? What do you plan on stocking it with? Even if it's not planted, canister filters are nice on big tanks like this because it allows you to position your inputs and outputs in order to get even flow throughout the tank, something that's virtually impossible with just HOB filters.
I disagree completely with HOB filters not being able to get even flow throughout the tank.
Hook up a couple Emperor 400's by Marineland one on each end of even large tank,and then sprinkle some fish food under the surface of the water and one can see for themselves. The Emperor series also allows water to be filtered from upper,middle,and lower regions of the tank with use of extensions for uptakes that come with the filter.
I used three of the emperor 400's on a 125 gal tank for a time ,and water movement was substantial throughout the tank.
Would agree that one large canister filter would be less clutter on the tank for you can place them out of sight but I would want one rated for twice the volume of water the tank holds.
I will confess that I am partial to the Emperor series filters and have eight presently in operation on six tanks. When I am finally able to get the 200 gal I am saving for (trying to) I will however for aesthetic reasons ,prolly go with a couple canister filters.