I have a litre of bud booster (6g/gall)
It’s 1-50-30 I think. I’ve had it ages but the high pk scares me.
Any help regarding this product would help. It says to give from formation of buds through till flush.
Also I’ve read about Lucas formula and stuff. I want to adapt it to canna as I always seem to have a high leaf/bud ratio
Tread lightly with PK boosters with your base nutrients. Over feeding can cause issues and lockout other nutrient absorption. I transition to 10/30/20 for the first 3 weeks of flower then back to 5/12/26 to finish 
Agree with @OGIncognito. Bloom boosters are just concentrated versions of the product you already use to feed PK. You have to be real careful about nute burn and salt buildup if using them.
Are you saying and I’ll need to know how but not use the equal a n b as stated… I don’t know how to work out what’s really in and if I did I don’t know what it should be apart from more nitrogen in veg than flower hence the pk boost but I have wondered this since starting. They all state it like it won’t work otherwise…
Thanks @MidwestGuy @OGIncognito
Was planning a n b building up with rhizo. Then pk13/14 for ??? Even canna have changed the instructions… I’ve been told day 20 for 10 days @1.5mg