finally, iv said it a thousand times but it just never seems to sink in. Jacks works great in a good soil but is far from complete, its what I use on my veggies. The thing I dont understand is people that spend a ton of money and build a great, organic soil n then use store bought nutes, whats the point? A complete nutrient would supply everything a plant needs in a hydro set up n Jacks isnt complete, but it does work great in a good soil. And since Jacks is such a respectable company that doesnt sell snake oil, why is their calcium nitrate so expensive? Is it special calcium nitrate? I know Jacks wouldnt just put a pretty label on it n mark it up 500% cuz that would go against everything they stand for. Dirt growers need to quit telling hydro growers how they have a complete, 1 part nutrient, when they use it with an expensive soil. All store bought nutes, are for convenience. The other thing I dont understand is why all these "pros" that spend all day hatin on other nutrient lines use Dynagro or Jacks, why would a "pro" buy store bought nutes? Could it be that Jacks n Dynagro have some reps hittin the ol marijuana forums? Nah, they wouldnt do that