Using canas light feeding scedule using only a and b and gona start doing calmag now. 1st week into bloom going amazing. Couple leaves look strange but not bad. Way better than what fox farm nutes did.
I'm about 2 weeks ahead of you (my first time with tupur+canna). I had 6 plants & glad two showed to be males - biggest,most healthy plants to date! I bet the next two weeks you'll be amazed. Mine almost jumped into my lights!