Jacks is a national brand and it works, but I find it to be dirty and short on micros.
Hydro-gardens is a Colorado based brand that was very price competitive and had more micros and fewer impurities.
Standard veg mix;
2 parts 5-11-26 mix with micros
2 parts calcium nitrate
1 part mag sulfate, aka epsom salt
Standard bloom mix;
5 parts mix
4 parts cal-ni
2 parts mag sulfate
1 part MKP (monopotassium phosphate)
Dilute to desired EC. pH to taste. Done!