the best filtration, for any tank, IMO is a good bio filter, i really like the use of lr, a deep sand bed and a protien skimmer, i personally dont' believe you can do any better, except if you have a really aggresive set up(like a shark tank, then i would get soething more aggressive), but using the things i mentioned, does very well for almost any type of fish, and even though it seems very unlikely, that is an outstanding set up and very efficient, when combined with good circulation(but it can be slightly costly)
HTH and good luck
ps, WELCOME TO A GREAT BOARD AND AN EVEN BETTER ADDICTION