I have a brand new 70G setup (Live sand/dry rock). used RODI water with 0 Nitrates (measured), Following BRS video I dosed with instant ocean bacteria and added a clown fish the same day. Turned off the skimmer. 4 days after adding Bio i decided to test the water. 0 ammonia 0 nitrites and 5ppm nitrates. Could this be true that I am already in the nitrate stage of the cycle? Fish are doing great....hungry, friendly and sleeping well.