Well the biopellets seem to working pretty darn good. I started dosing nopox last saturday and wasn't really seeing any drop, if anything it was slowly raising for the next week. Im thinking it wasn't all that effective on its own because I only have about 40lbs barely live rock because it was dry, this is a new tank, and I have no sand. And yes I know I only gave it a week by itself, so I'm not downing it. I'm sure by itself its a great product, and I've continued and still will continue to use it. But anways since I've added the biopellets (just over two days) my nitrate have gone from probably about 15 to about 5. It's a combination of the pellets and nopox, pretty darn impressive though. I've just been using an api kit so the result aren't super accurate, but I haven't needed them to be. Once it bottoms out on the api kit, probably tomorrow, ill start using my red sea kit. Then I will start tweeking the flow rate, or maybe even modding the reactor to be recirculating, so I don't strip the tank of all no and po. I'm very impressed with this combo right now.