505 Headbanger

SpliffyRand Day 1 - There is life After 4 days of germinating, all Headbangers popped. I will keep the humidity domes on them until the seedlings are getting too big. For extra humidty I added a wet towel to the tent. Quick Stats: -SANlight Evo 3-80 @ 25%, 40cm distance -humidity domes -23,3 °C -Day 1 is 28.12.25

SpliffyRand Day 8 – Second pair of leaves After a few days, I removed the humidity domes and transitioned into a light, regular watering schedule. The seedlings are currently receiving approximately 330 ml of fresh water every two to three days, supplemented with 1 ml/L BioBizz BioGrow and 0.15 g/L Epsom salt. In addition, two BioTabs per pot have already been applied so I dont run into deficiencies again. On day 8, the SANlight EVO was increased to 30 % output, which corresponds to approximately 18 DLI in my setup, calculated by using SANlights documentation and tests (https://www.sanlight.com/news/par-test-und-ppfd-plots-der-sanlight-evo-serie/) Quick Stats: -Day 8 / 84 -SANlight EVO 3-80 @ 30 %, 40 cm distance -Temperature: 23.3 °C -Relative Humidity: 35 % -VPD: ~1.9 kPa -DLI: ~18 ####################LED settings#################### Days 1-7 | Seedling 20 % → ~190 µmol/m²/s → ~12.3 DLI Low-stress establishment 👉Days 8-14 | Establishment 30 % → ~280 µmol/m²/s → ~18.1 DLI Early vegetative growth Days 15-24 | Early Vegetative 40 % → ~375 µmol/m²/s → ~24.3 DLI Active biomass build-up Days 25-34 | Late Vegetative 50 % → ~470 µmol/m²/s → ~30.4 DLI Pre-flower development Days 35-42 | Stretch 60 % → ~565 µmol/m²/s → ~36.6 DLI Controlled stretch phase Days 43-70 | Main Flower 70 % → ~660 µmol/m²/s → ~42.8 DLI Peak production phase Days 71-77 | Ripening 65 % → ~610 µmol/m²/s → ~39.6 DLI Maturation and resin development Days 78-84 | Finish 55 % → ~515 µmol/m²/s → ~33.4 DLI Fade-out / reduced metabolic demand

SpliffyRand Day 15 - Seedling Stage Finished Today, on day 15, I’m happy to see the plants thriving. The only thing I don’t particularly like right now is the dry environment. The VPD is far from optimal at this stage, but since I’m not using a humidifier, there’s nothing I can do about it for now. Nevertheless, the plants look vital and are continuing to grow. Compared to last week, growth is good, and when comparing to my previous grow, this strain behaves more or less the same this round. I’m happy, the plants are happy, so I’ll just let them do their thing for now. The only change today was increasing the light distance to 40 cm and raising the SANlight output to 40 %, which corresponds to approximately 24.3 DLI in my setup. The pots are still very heavy, so I won’t water them for a few days. Once they start drinking more, I will gradually increase the amount of water applied per irrigation. My goal is to reach about 1 liter per day by day 30, at which point I can install the Blumat drip system. Quick Stats: -Day 15 / 84 -SANlight EVO 3-80 @ 40 %, 40 cm distance -Temperature: 26.1 °C -Relative Humidity: 31 % -VPD: 2.33 kPa -DLI: ~24.3 ####################LED settings#################### Days 1-7 | Seedling 20 % → ~190 µmol/m²/s → ~12.3 DLI Low-stress establishment Days 8-14 | Establishment 30 % → ~280 µmol/m²/s → ~18.1 DLI Early vegetative growth 👉Days 15-24 | Early Vegetative 40 % → ~375 µmol/m²/s → ~24.3 DLI Active biomass build-up Days 25-34 | Late Vegetative 50 % → ~470 µmol/m²/s → ~30.4 DLI Pre-flower development Days 35-42 | Stretch 60 % → ~565 µmol/m²/s → ~36.6 DLI Controlled stretch phase Days 43-70 | Main Flower 70 % → ~660 µmol/m²/s → ~42.8 DLI Peak production phase Days 71-77 | Ripening 65 % → ~610 µmol/m²/s → ~39.6 DLI Maturation and resin development Days 78-84 | Finish 55 % → ~515 µmol/m²/s → ~33.4 DLI Fade-out / reduced metabolic demand