It is going really well thank you! i started dosing with ammonia the day I put the media in the filter, and yesterday I got my first 0ppm ammonia reading, with nitrites off the scale. I then dosed ammonia to 2ppm again and 12 hours later it was at 1ppm, so cycle definitely seems to progressing. Will test tonight to see if remaining 1ppm of ammonia has been converted. Thanks again for the media!