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Hello, sorry for the delay, but I was running several tests to try to understand what happened. I started growing other plants in my apartment, and among them was a tomato plant. It was outdoors, in a cool and ventilated spot, with a different soil medium, and the tomato leaves started looking...

I said it might be the light because i think the plant, when saturated with light, curls its new leaves upward to reduce light absorption. The upper leaves are a bit crispy too. However, I forgot to mention something important. It hasn't even been two weeks since I moved the grow to a much...

I suspected the soil was the issue, so I replaced it entirely for this new cycle, but the problem persists. I'm quite confident that it's a lighting issue. One question I couldn't find the answer to elsewhere: If the problem is resolved, do the tacoed leaves return to normal?

I use an iphone 14. I will do this test, cause now i see how important this is. Will do it tomorrow (away from home today) with and without the diffuser and the correct and wrong type of light selected on photone. My light chart I was using 2 of this light, now only 1. The second one i...

I understood. When i said “calibrating” i meant using the correct config (led full spectrum) and a diffuser. I thought that even using it wrong, the ppfd values wouldn't be very different if I used photone in a generic way. I will measure it correctly and inform the right values here thanks again

I admit that I never thought about "calibrating" the photone. When I get back home I will do this. Thanks

Now i have to wait about 1 or 2 weeks to see. I removed one light, the remaining one is in 60% and 12 inchs from the top of the plant. These pics i took to compare next week to see if they are recovering or getting worse

I did that and its clean. I bought a loupe thinking its mites

The new leaves that have grown in the middle also curved upwards. The old ones did not.

Hi all, I’ve grown three cycles without any issues in a 40x40 cm grow with a 120W quantum board using Samsung L301H LEDs. I decided to upgrade to an 80x80 cm grow and added a second 120W quantum board. After that, I ran into problems. In the last cycle, I had upward-curving leaves, foxtailing...

Hi, actually this were my plants. I threw them away and start over. But certainly you were right and im facing the same problem now. https://www.rollitup.org/t/curling-edges-in-2-5-weeks-old-plant.1099372/#post-17551809

No, always 10~5 min before turn off.

Thank you all for the replies, I learned important things. Updates (5 weeks from seed) I adjusted the VPD and the problem resolved itself, or so I thought. Now im about to turn 12/12 and the same problem appear. But here’s new info: 4 of them are in an aerated substrate with 0.7 EC plus 20%...

Last month, I dumped 4 plants due to what I think were russet mites. I started treating them with wettable sulfur, and after 2 weeks, I decided to start over. I cleaned up the grow tent with alcohol, cleaned the pots, submerged them in a chlorine solution, and made a new substrate. The...

After looking close, i found whats appears to be fungus gnats and just one bug that i couldnt identify in the grow (sorry for bad pics). I kept 18/6 h and used neem oil (in the soil and leafs) yesterday (16/dec) just before the light go off. Today the leafs look like this:

Understood. Thanks

If its insect, clean leaf by leaf with water will solve this?

Hi, this is my first grow, 2 plants in 40x40 cm area. My seeds germinates on 15/oct, and looked health until 2 days ago. Im using alga-mic and grow fertilizers from Biobizz and about to start the bloom fertilizer from the same brand. Its been rainy the past 2 week and the moisture was about 85%...