Join Date: Sep 2007
Location: Paso Robles, Ca
I suppose it would depend on how much plants you have. I would normally reduce Nitrate than what EI would call for. At the end of the week I test nitrates before a water change it was higher than I liked (30+) I would reduce the amount I would use the next week.
Now I'm having the opposite problem at the end of the week my nitrates are below 10 before the 50% water change. I'm now adding more then I did the previous week. EI is a starting point you can tweak it so It works for your tank.