What nutrients should I use

This is my first grow and Im currently growing some plants their about 4 weeks in
Im using a fertilised soil 14-16-18 mix
My plants have just started to flower and I was just wondering wether I should use something like sensi bloom or a pk fertiliser with 0% nitrogen

A complete plant food. Jacks321 or their tap formula(one part) is great and very affordable. I like MegaCrop one part mix 9-6-17 in containers.

I don't have access to Jacks over the pond but I would run their tap formula if I had access to it.

Plants need some N during flower. Any well balanced nutes will work.

Ok thanks everyone
Will probably go for the sensi bloom and add some boosters along the way