10gal reef tank filtration

I need help. I have a 10 gal tank with 11lbs of live rock, 2 clown fish, 1 cleaner shrimp, 5 snails, 1 torch coral frag, 1 hammer coral frag and a zoanthid frag. I have a fluval filtration going and I recently tossed out the media filter because they were dirty. I have a poly filter inside of it right now. my question is... do I need those bio filters or will the poly filter be enough for my nano?