Why are my leaves curled?please help!

Too much light

too much light......

Nitrogen toxicity from feeding too much or too often........or both. Give just plain water for the next 7-10 days and theyshould recover just fine. Once you start feeding again, only give half the strength you were giving before, it will be plenty.

Good to have some Creepy Friends ! Check ph first, then ppm of run off From all mistakes, some could go in group, some could be seperate, but such look i had : Ph wrong Overwatering or underwatering, stupid, but both could play with pots ph Nitrogen excess could block absorbtion of calcium, with small underwater they look like this Too much light or wind. I had one girl who 70% of life looked even worse, the rest was perky and healthy. growdiaries.com/static/post/photo/20573/4864276_grow-journal-by-asnoriu.jpg Could not find what was making her sad ... But changing pot - solved all problems in my case, i had suspicion that its a lair of clay peebles played with ph ....

suppsed to be ' knock 1 or 2 hours off..' looks like i'm saing 1/2 hour, oops. 1/12*100% is an 8.1% reduction of light per day running 11/13 vs 12/12 and won't impact yield in any wy... in fact in context of a real light stress situation will only improve it obviously.

twisting of new growth can be boron-related .. but this is incredibly rare to have in soil or with any reputable hydro nutes (not sure if oyu are soilless or not, but no reason for a boron issue under normal contexts). Make sure pH of runoff isn't exceedingly different from your target. i'd shoot for 6pH in hydro/soilles and 6.5pH in soil. if you target anything near those it's good too. These just give plenty of room for error above and below target. If it is off, you can stop reading as that is likely the cause. pH swings can cause wavy/curvy growth in leaves do to changing rates of growth related to the pH swings. the leaves curling down are potentially a sign of being overfed or overwatered. if you made any noteable changes to feed recently, i'd consider how that differs today than the last couple weeks, because the plant doesn't looked burned or too lush etc etc... looks fairly healthy except for the terminals and the droopy leaves. is droop only during the last couple hours of the day? and do the leaves stay this way the vast majority of the last couple hours? if so, raising light, dimming, or reducing hours of light (or any combo of 3) would likely fix the droop in this context... knock 1/2hours / total hours given *100% to determine the proportion you should knock off of power or relative to inverse square law and raising ight... all can achieve the same reduction... i prefer to raise lights than dim them, unless incredibly wasteful. rather those photons be bouncing off walls and spread out more than just fewer emitted at source. So, you'll have to do a little investigation to figure out which is most likely given more information at your hand than what is given in the question here. Consider what you've done the last 7-10 days and any changes you've made to light/nutrients etc... should allow you to single 1 thing out as most likely cause then you can see if you are correct.