This is more of a general algae question. Ive asked on other forums and can't seem to get a clear answer (if there is one lol). So what I'm wanting to figure out is how to run a higher nutrient system with out getting nuisance algae. I've seen many tanks that run 10+ ppm no3 and close to 1 ppm po4. Why doesn't nuisance algae show up? Even if there is appropriate filtration, you still have nutrients in the water. Why does algae not grow? When ever my nutrients start to rise, algae shows up. Other tanks run way higher nutrients with no nuisance algae. Are nutrients just being exported before they are used?