32ppm is a bit high for some sensitive sps ,IME ,but won't harm anything you have currently. I'd wait it out with a a few water changes. Personally , I've used carbon dosing( vodka and vinegar ) for over 8 years with 24?7 skimming to keep NO3 under 1ppm and P04 around 2/3ppm even with heavy feeding. A sulfur denitrator is another option for nitrate control I've used with success before going to carbon dosing.
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Tom
Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals.
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