MBuck
New member
All parameters, including Amonnia, Nitrite, are in the zero to .05 range. My nitrates are at 50mg+. We have done two 45g water changes over the last two days, and after testing, nothing has changed. I have a 180g reef with a 90g sump/ fuge in basement, with 20 fish, only 6 that are over 4". We feed twice a day, and fish are thriving and appear fine. All corals appear fine. Tank has been set up for almost a year using cured live rock, and sand from my 125g. I am just puzzled why I am having Nitrate problems. Checked RO water for Nitrates, and comes back at 0 as well. Any ideas would be appreciated. Thanks!! Marie