Question about Advanced nutrients, and topping off my resevoir

cgrizzle3 said:

I was wondering a few things about nutrients in general, but more specifically, advanced. If you use advanced nutrients calculator is shows you use 20 oz a week of this and 20 of that. Well...Thats how much you put in with every res change, but what about topping the reservoir off? Which leads me to my next question, is the proper way to go about things is to check the water level everyday and say it needs 5 gallons, i make a 5 gallon full strength to get my ppm's back up? Or am i supposed to just add water and let the ppm's drop until the next res change? If anyone has any advice about how to properly go about my topping off of my resevoir in my hydro system, or about what ppm's are supposed to tell me i would greatly appreciate it. Thank you for everything +rep

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