Hello guys..i started the first week of flowering....

Hi Buddy First, thank you for sharing the photos, they tell a lot. Good catch noticing this early — that already puts you ahead of the problem. What we’re seeing From the photos, the pattern looks like: • Irregular brown/rusty spots • Mostly on older fan leaves • Some interveinal discoloration • Leaf structure still fairly healthy (no major clawing or burn) This combination points very strongly toward a Calcium / Magnesium issue, especially common right at the start of flowering. ⸻ Most Likely Cause (90% confidence) 👉 Cal-Mag deficiency or lockout This often happens when: • Using soft water / RO / rainwater • Transitioning into flower (plants suddenly demand more Ca & Mg) • pH drifting slightly out of range • Feeding was fine in veg but not adjusted for flower demand It’s not uncommon in Amnesia — she’s a hungry, expressive plant. ⸻ ❌ What it is NOT (important) • ❌ Not pests (no bite patterns, no stippling trails) • ❌ Not heat stress • ❌ Not light burn • ❌ Not a disease or fungus So no panic, no sprays, no drastic moves. ⸻ ✅ What to Do (Simple & Gentle) Tell the grower this: 1. Add Cal-Mag • Start light (don’t overdo it) • Especially important if using soft or filtered water 2. Check pH • Soil: aim ~6.2–6.5 • Coco: ~5.8–6.1 Lockout often looks like deficiency. 3. Observe new growth • Damaged leaves won’t heal • New leaves should come in clean — that’s your success signal 4. No heavy defoliation yet • Let the plant use what she still can • Remove only fully dead leaves later Growers Love my friend and please remember this is just my humble opinion You caught it early, so you’re in a great spot. Keep observing and let the plant guide you and follow what she tells 🌱

This is the symptom of a Magnesium chlorosis. It’s a magnesium deficiency. It can come from different factors, like a lack of magnesium in the media but also too intense light.