This is a diesel ryder wk 5 ph in 5.8 out 6.2, 1.5ml per L canna a+b (full strength is 4 ml per L) 700 ppm hanna, 6.5 liter coco in auto pot. fed .5ml per 4 liters calimagic from week 1-3. Im not sure if its cal mag or manganese i really think its manganese.it started these yellow spots when it was a week old i added cal/mag it seemed to have went away. it came back around the beginning of week4. i just flushed and re nuted about 4 days ago-no help.also canna a+b has 4% mag but no cal or manganese.it also has kind of a tiger striped look to some leaves not real bad tho. someone please offer an opinion 
