Dakotahshy
Aquarium Advice Apprentice
I have a 14g nano reef tank. I have slowly removed the bio balls, and replaced them with live rock and top them off with the filter media but I can't seem to get the nitrates down. This week I removed the remaining few bio balls, and did a pwc. My nitrates are still sitting between 40 and 80 ppm. I am just running the regular filter that came with the tank. Any suggestions. Everyone appears to be healthy in the tank but I know I need to get the nitrates down.