Canna

I just recently switched to Canna substra for soft water . Right now I am in the veg phase. I was wondering if anybody has used this and what ppm's you are feeding your plants. I guess what I'm trying to ask is what is a good parts per million with Canna substra for plants that are in a mature veg phase. Thanks hope somebody can help

Lifetime canna user but never with that particular line.
But I would , as a rough guide just use the canna chart and hit them with 2/3rds to 3/4 of recommendations.

Thank you