So .. are these nutrients good or not ?

Hi guys .. My babies are not in the flowering stage yet, but I've already got this cheap nutrient with a 4-6-6 NPK !
Problem is, the lady who sold it to me said that it's for trees and " you should use it with caution cuzz it's really strong " , plus it's not a liquid or little grains .. this nutrient looks like soil .. it's dark black and really nasty !
I already used it once with another strain but .. is it okay or should I buy another one ?
Thnx

Sorry, It's a 4-10-10 nutrient ! It says mix it with soil and water ! it has the composition of a soil actually with perlite in it

id say no
i generally use 2 different nutes
one bottle for veg
one for flowering
and a here addins here and there

i suggest you find a better nute for your cause
but its completely up to you in the long run

I'm no nute pro by a long shot, but I just use fox farms big bloom, and alternate with regular water, and water mixed with a little molasses. All I have is T8 flourescent
for light, and I grew an absolute beast last grow.

Like Sunni, I use 2 different nutes, 1for veg .. 1 for flowering. I use Maxsea products as that is what is readily available to me. I've thrown in some cal/mag, too. It seems to be sufficient.
Like turbobuzz, I am no expert.

Thnx people