Its day 10 since my 110g was setup up using liverock from a local reefer's teardown. Things are progressing rapidly, too rapidly I'm sure many would say. Luckily I skipped the bulk of the nitrogen cycle because of the rock. I never detected any ammonia and likely little NO2 (Red Sea kits have poor resolution). My nitrates built up to something like 25ppm, but two series of water changes have cut that down to 4ppm. That's important because my tank came with a large blue hippo tang and the liverock ...