I've tried to figure out my problem but the conflicting information that I'm coming across is very confusing so I'll state the symptons. I'd appreciate any response for what needs to be done for yellowing leaves. I've also got downward curl on the leaves and downward cupping mostly at the buds. The plant is 5' ft tall that is anchored down. It has been flowering for 2 weeks. I've been feeding a 1/2 gal solution of 2-11-11 Awesome Blossom (under 2 teaspons per gallon mixture). The plant is under an air-cooled 600 watt HPS lamp at a distance of 10" inches. Last night I did pour 1 gallon of clean water through the soil. Now, it looks like the yellowing is more pronounced from yesterday.