Soil is a very popular medium and customers have reported good results when using to grow their plants. Soils that Grow It Yourself Hydroponics invest in usually come with perlite and worm castings added to the soil such as Biobizz All mix. We do sell other soils that are different like House & Garden Bat Guano which has Bat Guano added in it for extra flower power. Most soils don't need pHing .