6-30-30 (grow more) vs 7-15-30 (jacks finish)

[kristoff23]

Looking for the most affordable dry fert for most of flowering. leaning towards jacks 7-15-30 from week 3 - 10. Alot of farmers and researchers say P is always overly used.

6-30-30 or 7-15-30
Cal/mag and kelp will be used for both *edit*
your opinions?

 

[Creeperpark]

You can't go wrong with Jack's friend. I don't know much about kelp but cal mag is important. I see you are an old member with a lot of time. If you don't mind posting your work it would be appreciated. If you can't due to where you are its Ok too. Thanks for stopping in Kris its good to see your post friend.