Day 33, plant in the back is looking nice since I opened it up some, but it's behind from other plant. It's just now starting pre flower, other plant has been in pre flower for a good 10 days so it means they will finish couple weeks apart, even though both started at the same time and same strain. First two pictures of plant in back which I think is going to go into a little growth spurt and fill the back up nicely. So with the way I'm mixing my nutrients is working very nice, no brown or rusty spots on leaves,or any leave tip burn, just look nice, going to start feeding EC 1.3 and go up a little over time until I see the leave tip get burned a little if it happens, but I won't go over EC 1.6