wrinkled leaves

1. Adjust watering: Water only when the top 2–3 cm (about an inch) of soil is dry. For this stage, around 30–50 ml per watering near the stem is enough. Ensure good drainage — perlite ratio looks fine, but double-check pot holes are open. 2. Light distance: Keep your LED about 60–70 cm (24–28 inches) above seedlings (for Mars Hydro or Spider Farmer models at ~25–40 % power). Too intense light can also cause leaf curling or stunted growth. 3. Humidity & temperature: Ideal: 23–26 °C and RH 60–70 % during seedling stage. If RH is lower, consider a dome or light misting early in the day. 4. No nutrients yet: Wait until the seedlings have 3–4 sets of true leaves before introducing any fertilizer. If using rich soil (like Biobizz All-Mix, or soil pre-mixed with Bloom or Grow powders), plain pH’d water (≈ 6.2–6.5) is enough for now. 5. Soil aeration: Gently loosen the top layer of soil once it dries slightly to help oxygen reach the roots. 6. Patience: Autoflowers can appear slow in early growth but will accelerate rapidly once root development stabilizes around day 14–18.