Hello, I recently bought a new 20 gallon tank and apparently it’s cycled after only 3 and a half days. A couple of days ago when I first started the cycle, the parameters were 0 ammonia, 0 nitrite, and 0 nitrate. When I checked a day later, I had around 0.10 to 0.20 ppm ammonia. When I checked today, I had 0 ammonia, 0 nitrite, and 5ppm nitrate. It’s only been 3 days! When I started the cycle, I added a full bottle of tetra safestart and I squeezed the filter sponges from an already established tank into my new one. I knew that the cycle would be faster but not by this much. Is this even possible? I am doing a fish less cycle and I’m using an API master test kit for testing.