E.C question

Hi Guys 'n' Gals
Been searching and searching but can't find what I need, can you help?

My question is if my desired ec is 1.5 what ratios of additives to add? So many things add to the ec that if I am aiming for 1.5 ec for the base nutrients, are the cannazyme, which can't be added at anything like the recommended dosage without taking a huge chunk of the e.c, pk13/14, shooting powder (haven't used it yet but it's on it's way along with some Sumo Boost) in addition to the 1.5 ec or incorporated into it?
Many thanks for your time

Just to clarify I've been following advice given elsewhere but cant remember who gave it. All credit to them, it has been working a treat. Here is a sample of their work:
VEG
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week 2 - 1.2 ec just canna a/b
week 3 - 1.3 ec "
week 4 - 1.4 ec "
By this time the plants should be 15/18" if you are useing a hps light.
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FLOWERING-
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week 1 - canna a/b ec 1.4
week 2 - canna a/b ec 1.5
week 3 - canna a/b ec 1.5 with 2 ml per litre of big bud
week 4 - canna a/b ec 1.5 with 2 ml per litre of big bud
week 5 - canna a/b ec 1.6
week 6 - water for 2 days then follow with pk 13/14 for 5 days
week 7 - canna a/b ec 1.6
week 8 - canna a/b ec 1.6

That would be TYKE1973's schedule.

I would assume its the combined EC.

CANNAZYM only takes up 0.1EC mixed at 2.5ml per litre but I don't think tyke uses anything extra other than what's mentioned.



J

Cheers Jondamon, and thank you Tyke, first coherent schedule I could find apart from Cannas own that I used at half strength.
Tykes works better for me
However, I do also add pk13/14 to weeks 4 and 5, no big bud, flush last week if possible.
Last three crops have had to be slightly early because the size and density of buds on the white rhino has encouraged budrot and as soon as I see that, down it comes