I have plants that are about 6 weeks into flowering and they do not look good at all. I am using ffof soil, big bloom, tiger bloom, and grow big. I feed them once a week. The leaves are turning yellow than turning purple. The leaves feel like the plant is dead very crisp. The yellow leaves have brown spots all over. The soils ph is around 6. Could this be a major P defic? Ill try to get pics up as soon as possible.
6 is somewhat low for soil - try to bump that up to 6.3 - 6.8 I hear a lot of people say their plants feel like sandpaper at the onset of pH problems. Got pics? Are you using all 3 (Grow Big, Big Bloom, and Tiger Bloom) right now? or have you taken them off of the Grow Big?