Question from a fellow grower:
According to all the research I can find, I have a magnesium problem in my water system. I found out that Epsom Salts is a good cure. 1 Tsp per gallon. But there is no mention of how frequently. When is the nutrient depleted again. I have a 14 gallon system. I discovered today that this appears to be increasing not decreasing. Over a period of 10 years previously, I never had any water issue. My PH is 6.5. Any suggestions?