G
Guest
my plants have been vegging for about 2 weeks now under 3 clfs, my bottom leaves started to darken in the middle and then turned yellow. Now the leaved are dry and flaking apart. also im getting small yellow spots on some top leaves. Is this a heat problem? Too much nute? not enought? im using 1/2 teaspoon gh flora veg per gallon with a ph of about 6-6.5 in promix. I feed every three days of so. How can i test my soil ph with a test strip?