I've never bothered checking my ppms in soil honestly. But if your runoff numbers are in the thousands, especially if your numbers going in are lower, you might want to consider a flush, because there's a lot of crud coming off in the excess water.
stinkyattic Reviewed by stinkyattic on . ppms in soil? Good day folks, Does it make sense to check the PPM's of the mixed nurtients when growing in soil? I have been doing a few in coco and then some in soil and so i have been checking the ppm's of both. I also have been keeping them at about the same strength. Can the same strain and size plant, in the same condition, handle more food in a soil or hydro medium, or is it the same? I started my growing about 5 months ago and since i burned the heck out of many plants just following Rating: 5