Not really, they are almost identical. Megacrop uses amino acid chelates for micronutrients, while Jack's uses EDTA-whether that makes any difference in the real world is anyone's guess. I use Megacrop, and I like their directions better for new growers-also, check out the nutrient calculator on their site, you can use it with either Megacrop or Jack's.Which d
Thank for the quick reply. Do you recommend one over the other?
What PH are you finding is working best for you?I run Sunshine #4 for my moms and just switched to Jack’s 321 from the gen hydro line. I’m happy with it. Easy to mix, plants are super green. I find the Jack’s touchier in my hydro setup, but in the sunshine it’s pretty easy to live with.