420DeepGrow commented4y ago
It looks like a wonderful grow, but maybe you’ve gone a bit overboard with the nutrients. You should always check the EC of the water that comes out after watering; that EC needs to be lower than what you apply, so you know your plants are eating properly and you’re not overfeeding them. Those excess salts also cause the pH of the substrate to vary, and they can’t properly assimilate all the nutrients, showing signs of calcium and magnesium deficiencies when they actually have overfeeding. The first symptoms may look like calcium and magnesium deficiencies, but that’s not the case; they have excess salts and can’t assimilate that calcium and magnesium. It’s a mistake to apply cal-mag; the best thing is to measure the pH and EC and see what’s happening there. Hope this helps, bro!
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