Re: How to balance NPK, Ca, Mg and micros - new experiments Hi Tobi, I occasionally have the problem you've described. Adding magnesium sometimes works sometimes doesn't. Now i'm working to solve the problem. This paleness appears often when high potassium amounts are added. It doesn't affect growth speed however but some plants look ugly. You say you added more Ca and it helped. I will try to check it. If you have hard water you can safely add more NO3 than 5 ppm (the only problem with NO3 is in soft and very soft water) |