Based on what I've read, this sounds like a lightly stocked tank so you should be fine. If you find you are having problems the next step would probably be a protein skimmer.
If you want to go the less conventional route I've been
looking into deep sand beds (DSB). These are typically 4 - 8 inches deep either in your display tank or in a sump. Ron Shimek is a proponent of DSB in your display tank. He has a forum on at
marine depot. The other person I've read about is Anthony Calfo, a commerical coral farmer. He advocates aggressive skimming plus remote DSB (in sump). Check out
DSB in a bucket for nitrate control at ReefCentral.