I use advanced nutrients sensi coco and have for years. I like it, it's easy to use and I never have to worry about pH. That being said if Canna is easy to source I'd prob just get that nothing worse than running out of nutes and no where local has them.
Here are some pictures, this was my first run at this new spot and the well water was an issue, I got it fixed and had a host of other issues. Also all plants were from seed so some got a little over fed, with 44 of em I wasn't mixing seperate nutes for each one.
Anyways these are under double ended 1k hps. Grown in coco and fed AN sensi coco Bloom A and B, I use bud igniter In the first two weeks and big bud coco after week two is over all the way til I flush which is usually about a week from harvest. When I use either additive I mix them at half of whatever I used as Part A. Example: if I add 250 mil of part A and 250 mil of Part B then I add 125 Mil of bud igniter or big bud depending on which week of flower I'm on.
View attachment 4667752
View attachment 4667753
View attachment 4667754