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This 3-way soil meter also helps you determine if plants are getting enough light as well as measuring the pH level in the soil
Power Si works as a transport agent bringing nutrients from your root zone to the rest of your plant
It also works in all systems with ease and will not affect pH or ppm
This is by design
Botanicare® Cal-Mag™ Plus 2.5 Gallon Tubing This 3-way soil meter alsoCal Mag Plus is a highly fortified calcium, magnesium and iron plant supplement formulated to correct common deficiencies. Supplementing your preferred nutrient program with Cal Mag Plus is strongly recommended when using reverse osmosis water and when growing in Coco Coir based medias to compensate for natural calcium draw. Cal Mag Plus can also be applied as a foliar spray to further enhance growth.