Just going to 12/12 when to start using booster and pk13/14?

I have Some Blueberry Cheese and Some big Bud plants at the moment, i had from clones, iam using Canna range nutes and growing in Coca substrate soil.
Iam in week 7 of Veg and tomorow iam turning to 12/12, i was just wondering should i use my veg nutes for the 1st week to boost nitrogen, or start using canna boost straight away? or even mix?
and when to start using pk13/14?

ur help will be highly appreciated :)

also a mate said to give 36 hours of darkness before flippin the lights onto 12/12, is this reccomended?

cheers guys :thumbsup:

Never heard of the dark, but I pk at week 3 into flower and pk only for 1 week, no matter the amount of waters.

Start using it 4 weeks into bloom as directed. I use HESI and it starts with 2.5ml to 10L of water...and every week it doubles and week 7 it is up to 15ml to 10L.......you may need it before just have to watch the leaves, if they start to yellow a little like the tips of the leaves you need to start using it but a point to start is 4 weeks in and let me tell ya...........the buds will start to fill out like crazzzzzzy. Any questions let me know. have fun growing i know i do :jointsmile:

but iam using the canna range mate, so do i just feed them veg nutes for the 1st weeks then week 3/4 start using booster then week 5 us pk13/14?

thanks

use both on week 4 pk13/14 you use with the bloom nutrient mix em and stay around 2.2 EC for blue cheese

thx m8