I have a planted 10 gallon tank that I have been trying to cycle for over a week now. At first I was adding beneficial bacteria to the tank, but then I got a hold of filter media from an established tank. Before I put the media in the filter, my ammonia was at about 2ppm from dosing a small amount of ammonium chloride just a few days before. I’ve been testing the water for the past couple of days and noticed the ammonia dropped very early on (just about 0ppm). The nitrite was high (around 2ppm) and there was some nitrate present (around 5ppm). Today, I test the water and all three are at 0ppm (ammonia, nitrite, and nitrate). Is this possible? If so, what do I need to do next in order to continue/finish the cycle?