I'm new to having aquatic plants. To be honest I thought it was gonna be too much work, and were limited to 1 color. My nitrates have never been lower then 10 ppm, sometimes as high as 40 ppm. I always do 50% weekly water changes. I recently added 4 small plants. To my amazement, my nitrate levels are now down to 5 ppm. And my fish love the plants.