I just cleaned out my canisters today and noticed that last time they were opened I forgot to put the chemical media back in. The tank has been going for 2 months only on filter floss and ceramic rings. Ammonia was 0, Nitrite was 0 but my Nitrates were between 50 and 80. Also, I have only done about 5 or 6 20% water changes these past two months. My question is does anyone out there successfully run without chemical media?
