Hey, Thanks for the quick response, here are the pics. these first 3 are of the damaged plant, its only really happening on one shoot. the others are starting to yellow. Im 3 weeks into flowering, using Advanced Nutes super tea bloom (2.3-3-2) every 2nd watering, and ive used schultz bloom builder (10-54-10 or something) extremly low dose once, 1 week into flower. heat is not an issue, at 25 c/day, 18-19 c/night. anyone know whats up?