single leaf curl

[dirtymike]

I sometimes get a single leaf curl like this every now and then. Two or more plants with all environmental surroundings being the same, strain also. To me this is the plants signal that the light is to close. After moving the light up 6 inches and 2 days pass and all's well. Question is "Why" didn't the other plants signal the same light stress.

[Gingerbeard]

They to it to make you question your manhood, as mine do me. Can't say it's from any one thing or another. Never had an issue.

[Bluey]

When I see that I normally back off the nutes.....ive always been quite conservative with light during early stages but I have pushed the nutes and seen that happen with my little ones.

I'm not saying it's not your light but in my case it was excess nutes...same symptoms..

[dirtymike]

'I'm fairly certain it is the artificial LED light. (SF2000) This is only my third year growing indoor without a DLI meter to monitor. Been using grow dots and recharge at its lowest level. Finding the sweet spot at the beginning of the grow with LED lights has been a challenge for me.

[Bluey]

I've got a couple of those and a couple of the sf7000 and a bar light...I love the bar light. I use my phone and I'd be seeing around 350ppfd on plants that size which is pretty low. I don't see Max ppfd until I get into flower, in veg I keep it conservative. Just easier to manage but once in flower different story I reckon. That's the approach I take with photos. Autos I hit them with more but I'm not as good as I'd like to be growing those.