Hi, I am doing a fishless cycle for the first time (well, technically was fishless while cycling previous tanks, but always used well established live rock to start so the cycle was pretty much instant). Anyway, I put in my dry rock and live sand, filled the tank with saltwater from rodi mixed to 1.025 sg, and added Dr Tim's, followed by his ammonia product. I measured later that night and ammonia was 2.0 ppm and nitrite 0.0 ppm, so I figured I was off to the right start. But it's now day 7 and I still have 2.0 ppm ammonia without having added any more since the first day. His instructions keep saying "if ammonia falls below 1 ppm dose more" every day but it never falls. I know things must be working on some level because I have 5 ppm nitrite now, but shouldn't the ammonia have come down already? Just wanted to see if this was normal... thanks for any insight you can give!