I've read on here that Promix has a very high ppm if you took a cup and filled it with half promix/half water, let it soak overnight and check the water will be over 1000ppm. So they say to get Sunshine Mix #4 which is like the same as the promix with a much lower ppm, like 300ppm or so. Then again, tons of people on here use promix also...just sharing what I've read
chrisdl805 Reviewed by chrisdl805 on . question for canadians i have been through 3 different kinds of soil: shultz tropical mix some shit seedling mix from rona dutch treat and they have all fucked up my plants. what kind of soil have you guys had any luck growing in? do you know if there is any soil in canada with a good ph for cannabis to begin with without having to add a bunch af crap? thanks Rating: 5