Maltimomma
Aquarium Advice Freak
Yesterday I did pwc in my two 55 gallon tanks and used Prime for the first time. I also switched back to using filter cartridges in the AquaTech HOB filters. Today I tested the tanks and the Nitrate is between 40 ppm and 80 ppm. Its usually 40 ppm. I use the API Master test kit. Can Prime change test results? All other test results are normal. Any ideas or suggestions?