is botanicare power flower good?

hey guys
ive just put plants into budding and i got some of them nutrients
but im new so i dont understand all this 2-2-5 per gallon stuff(if someone could explain it would be fab) but im wondering is it good? and will it do the job+how much to give them of this stuff as its not on google(i have looked) any advise would be fab, cheerss ))

This thread has the simple answer I think you want on nutes and when to use what. However there are threads that get pretty detailed if you're feeling adventurous enough to find em.

https://www.rollitup.org/newbie-central/937-how-grow-marijuana.html#post4677