Started the Ammonium Bicarbonate dosing 3 day's ago..first test so far so good but this is also after a 30 gallon water change. Was hovering around the same level before the water change. Also added bacteria had a Dino breakout after blasting my Phosphate up from 0.03 to .11 with Reef Roids. Done with that & chasing #s sticking with the Ammonia dosing & lower #s