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...edium is not organic, it is much easier to control disease and pests. With soil, there are always unwelcome surprises lurking below the surface." "There are a multitude of commercial fertilizers for soil and hydroponic growing on the market. The growers most often favored the following three brands of fertilizers: 1] General Hydroponics, the #1 favorite, 2] Hydrofarm, the #2 choice and 3] Peters Products. The outdoor soil cultivators were very high on Peters, which is readily available at Garden Centers and most grocery store outlets. Peters is easy to use because it contains no chloride carbonates or excess sulfates so there is no salt buildup. It also contains trace elements and minerals, which are often leached out of the soil through continued watering and flushing. With Peters, you can avoid the stretching and burning of the plants that is often associated with other fertilization applications"The photo above shows one type of TDS meter by Hanna. There are quite a few TDS test pens available. This one is fairly inexpensive at $75.00. These testers measure Total Dissolved Solids [TDS] in Parts per Million [PPM]. By monitoring the PPM, you can maintain the ideal nutrient level for constant productive growth." "You will also need the calibrating solution as it is a good idea to recheck and recalibrate your pen periodically to maintain its accuracy. The results of faulty instruments are going to show up negatively in your plants' growth cycles." After the seedlings in the sponges are popped into Rock wool 4" cubes, the journey to find the girls begins. In the 20/4 light cycle, by day 15 from seed planting, plants are about 6" tall. Procuring the seed type for your area and growing conditions is an important part of the process. Cannab...