Depends on how heavy the bioload is, I guess. What are you keeping/planning to keep in it? I'm a believer in redundancy, so I'd probably add a HOB filter (such as an AC 70 or 110).
Thank you everyone! I am currently using 2 350B marineland bio-wheel filters--but have become very interested in changing over to the xp3 canisters somewhere down the road! I figured double up was the way to go!