Light stress?

Saludos a simple vista la planta presenta estrés por transpiración, manifestado por el levantamiento de los bordes dentados (serraciones) de las hojas. Este es un mecanismo de defensa para reducir la superficie expuesta y evitar la pérdida excesiva de agua. Factores y Variantes Causales: Radiación y Calor (Confirmado): Al reducir la distancia de las lámparas, aumentó la intensidad lumínica (PPFD) y la temperatura en la canopia. Aunque ya subió las luces a 40 cm, el tejido foliar aún muestra la memoria del estrés. Déficit de Presión de Vapor (VPD) Elevado: No es solo el calor, sino la relación entre temperatura y humedad. Si el aire está muy seco, la planta "suda" más rápido de lo que sus raíces pueden absorber agua, provocando que los bordes se ericen. Estrés por Viento (Wind Burn): Si tiene ventiladores apuntando directamente a las puntas, esto acelera la evaporación y causa el mismo efecto de "taco" o serración erecta. Desbalance Osmótico: Si el sustrato tiene una acumulación ligera de sales, a la planta le cuesta más trabajo succionar agua hacia las puntas, lo que la hace más sensible al calor de las lámparas. Recomendaciones Profesionales: Medición de Canopia: Use su higrómetro para medir la temperatura exactamente en las puntas de las plantas; busque que no supere los 26-28°C. Ajuste de Humedad: Mantenga la humedad relativa entre 45% y 55% en esta etapa (Semana 8) para equilibrar el VPD. Verificación de Ventilación: Asegúrese de que el aire circule sobre las plantas, no golpeando directamente el follaje de forma agresiva. Bus, es un estrés leve, pero si no se corrige, puede derivar en quemaduras en los pistilos y pérdida de terpenos por evaporación.

hey buddy first thing first: you’re not wrong to feel relaxed about this — and your instinct from the last grow is already pointing in the right direction. What we’re seeing here: • Leaves look healthy, dark green, and well-fed • Buds are forming nicely • No bleaching, no burn, no necrosis • The “erected teeth” / slight upward serration is very mild This is not a deficiency and not damage. ⸻ What’s actually happening (most likely) This looks like a light–heat response, not a problem. When you: • lowered the light to control stretch • then saw the leaf edges perk up • and raised the light again …the plant basically said: “Okay, noted. I feel the intensity.” That slight upward curl at the serrations is the plant managing transpiration and light load. Think of it as: 👉 “Alert, but not stressed.” ⸻ Why this isn’t something to worry about Important signs that this is totally acceptable: • Curling is only at the edges, not full tacoing • Leaves are not clawing downward • Color is even (no lime tops, no burnt tips) • Bud development looks on track If it were an issue, you’d see: ❌ Bleaching ❌ Crispy margins ❌ Foxtailing ❌ Sudden yellowing None of that is here. ⸻ About the 40 cm distance 40 cm can be: • ✔️ fine for many LEDs • ❗ a bit intense depending on wattage & lensing Since you already raised it slightly again, good call. You don’t need to chase perfection here. ⸻ Gentle guidance (not corrections) • Keep doing exactly what you’re doing • Watch for progression, not presence • If curl increases → raise light a touch or boost airflow • If it stays as-is → ignore it and enjoy the grow Plants don’t need to be “flat” to be happy 🌱 They need to be balanced. ⸻ Bottom line (the reassuring part) You’re not harming the plant. You’re not behind. You’re reading your grow correctly. This is one of those: “Looks a little different, but actually fine” situations. And honestly? This is the kind of detail good growers notice, not bad ones. Growers Love my friend and please remember this is just my humble opinion, always follow your instinct

Agree, waaaaay over fed...........these symptoms often point to excessive heat, but can aso be an early indication of a magnesium deficiency.

overfed, maybe inhibiting Sulfur? maybe a sulfur deficiency along with the overly dark leaves? At the least, too much N is likely due to how lush the leaves are. visible symptoms alone are not enough to answer most questions. It does not look like typical pattern of light damage. You can grow plants with damage and have okay results. So, like your last harvest, it is not the end of the world when less than ideal nutrition etc (most times). They are robust weeds. Be systematic, try some adjustment, see how it goes... if it works continue to do it in future, and if not you try something different next time. Don't throw the kitchen sink at it because you'll never learn what the actual cause was and continue to run into the problem in the future.

Saw Toothed leaves Magnesium deficiency from Overwatering

hi....... Ich würde mir keine Sorgen machen 😎 und erst mal beobachten.... Viel Glück