We commonly quote the Redfield Ratio of 16 to 1 of nitrogen to phosphorus. However, note that this ratio came from a specific algae, and other organisms may have differing ratios. I can remember some other organism (that I can't remember) having a 50 to 1 ratio. So it's fair to say it's a bunch of nitrogen to a little of phosphorus. Also note that I stated nitrogen and phosphorus, not nitrate and phosphate.
You will know more specifically when you get one of those numbers near zero, and the other is still high. At this point the carbon dosing has "stalled"
You will know more specifically when you get one of those numbers near zero, and the other is still high. At this point the carbon dosing has "stalled"