My Rookie Year

I moved the young ones from 1 gallon pots to 5 gallon pots and the ppm were down to 100. Nectar for the Gods line requires the soil to be between 300 and 500 ppm to properly take in the nutrients so I was on the verge of a real nutrient deficiency. I'm planning on changing from the 100 watt LED to a 1000 watt HPS. at the beginning of week 5.