we find that live rock tanks typically still need nitrate controls so you are good as long as no free ammonia registers. if anything, id have put siporax up against live rock anyway as the better denitrator. In the end, getting any sip or live rock to reduce nitrates in a system that would run say 20 ppm nitrates without them is very hard, and never consistent.
the majority of reefers must take action to remedy nitrate above any type of ceramic media or live media, they're typically using algae to uptake it and various dosers like nopox
smaller reefs like pico reefs only need full water changes to control all aspects of the water, we have it the easiest.