135Gal Setup recommendations

[slicks2k]

Hello, need some advice for a 135gal setup. What kind of filters recommended. Will be for a an Arowana, maybe couple of other fishes, but this is my first time with a tank this size and need some advice on filters, and anything else for tank this size. Thanks :)

[ChilDawg]

A 135 may not be enough for a full-grown Aro kept singly. Also, it has been said that any aro tankmates should be at least the size of a football, so that would wipe out any chance of water clarity, which is the main concern in keeping Aros. Just my $0.02.