Burping the container is necessary to prevent mold growth when humidity levels rise above 65. Photoperiod 0. Germinated seeds usually grown in soil, but rockwool for hydroponics is also a good option growing.  Source: <a href=https://www.scaleinlegnosrl.com/cannabis-seeds-marijuana-seeds-weed-seeds-on-the-market/>https://www.scaleinlegnosrl.com/cannabis-seeds-marijuana-seeds-weed-seeds-on-the-market/</a>