In veg the main macro nutrients are nitrogen - N, phosphurus - P with a small amount of potassium -K.
Some times the transition switch of hours from veg to flowering time the first couple couple of weeks you might experience nitrogen defeciency, this can be partly related to change of nutrient feed regime & the differnce of NPK values between veg & bloom nutrients etc
In flowering the main macro nutrients used are phosphuros - P, potassium - K with a small amount of nitrogen - N.
I could not possible advise well enough on micro nutrients tho as that would require some research, which can be achieved if you look at NPK values nutrient contents of bat guano & other related product people use in home brew tea feeds.
Also you local water company should have some data of whats in your water supply also & you may find all sorts of useful micro nutrients aviable thier is a considerable differnce between hard & soft water areas
E.g hard water is mainly alkline based with a fair amount of macro/micro nutrients being magnesium - Mg & calcium - Ca aviable in supply due to bed rock the water is pumped from etc !!! theirs more to the picture than meets the eye when you start looking at the finer details.
Heres a link to the soil/organic section of the forums
Soil you find various post about teas/brews in their if you care to browse through a few pages