Edges Curling Up Troubleshooting forum included

[highdogs25]

polishpollack

i just gave them a 10 min drip at 11am and i'm glad to see that they're looking a little better than yesterday and the day before. i'm in the east bay and it was a lil above 90 for the past few days i couldnt really control the temp that well. i dont usually turn the ac on unless its past like 95...but its been a bit cooler lately thats why i think they look a wee bit healther. i also gave the rez 2 drops of superthrive for about 3 gallons just to be safe. first multi leaves are growing and the color looks very vibrant green though and the stem is pretty strong.

[MEDEDCANNABIS]

84 is too hot and invites pests and disease. you should be feeding balanced nutes. no experienced grower ive seen likes superthrive and it cant be mixed with certain nutes as i believe it says on the label. calmag wont be necessary if your using tap. at least for a while. get some good nutes and watch your ph.

[ConcaucsionS]

I had the same problem just a few weeks ago. Its often a result of the leaves drying up because your humidity is too low in its living conditions. A lot of things that can cause this are like you mentioned the lights being too close, I keep mine at least 8" away but if your using 400-1000 watt sodium's, I imagine most people here are from what I read above than you obviously need a lot more room. Direct contact from any kind of fan is a big one. A lot of people will put fans right in front of their plants to promote stalk growth among other things but this can actually dry the leaves out. The best quick fix is to just raise the light a bit and change the airflow from directly on the plant to just in its direction. If its a full room you can move it back while still pointing it directly at them or if its in some kind of enclosed area try just turning it abit so it blows all around the plant. You'll still get the sway but without the "chapped" leaves in a sense. Hope this helps.

[ConcaucsionS]

O! You are using CFL's! Well in that case 8-12 inches from the top and reduce direct contact from the fan. Id go with 12 until you see new leaves that aren't curling. Then slowly as you raise your humidity and lower your temp abit I keep mine at 76 you plants will be hummin along nicely and you can drop them down to 8 inches. To be truthfully honest CFLS are only good for veg. They dont flower very well on their own. So i'd suggest getting some flower boost and vegging them up for as long as you can. If you keep them on a 16-8 cycle they wont go into flower. When you do eventually want to kick them into flower go with a 12-12 and dont flower them for too long or you will wakeup to dying buds. Check out my CFL grow log Cannabis.com - Medical Marijuana, Medical Cannabis, California Club, News, Videos, Dispensary, Co-op, Co-ops, Menus, Reviews, Los Angeles :: Member :: Concaucsions if you have any questions and dont find the answers there just send me a msg mate

[polishpollack]

highdog, when you say 10 minute drip does this mean you dripped fert into the water over ten minutes? If so, that's not really necessary. You can add the fert to the water, give it a stir, and put the plant in. Measure ferts more by teaspoon or waterever the directions call for. I still think 45% humidity is fine but Concauscion might have something in that your fan might be too close. Air flow is very important in an indoor grow for two reasons - one is that is moves air to get CO2 in and O2 out and helps control temp. The other is you want wind hitting your plants because this will strengthen the stems. Otherwise they will grow up, then fall over. The wind cause the stem to harden up to support the plants weight. When the weight becomes to great for a weak stem, the plant will fall over. It's hard to know what to do in a grow where you don't know ppm, but then you can just feed a little here and there, and see what happens.

[highdogs25]

highdog, when you say 10 minute drip does this mean you dripped fert into the water over ten minutes? If so, that's not really necessary. You can add the fert to the water, give it a stir, and put the plant in. Measure ferts more by teaspoon or waterever the directions call for. I still think 45% humidity is fine but Concauscion might have something in that your fan might be too close. Air flow is very important in an indoor grow for two reasons - one is that is moves air to get CO2 in and O2 out and helps control temp. The other is you want wind hitting your plants because this will strengthen the stems. Otherwise they will grow up, then fall over. The wind cause the stem to harden up to support the plants weight. When the weight becomes to great for a weak stem, the plant will fall over. It's hard to know what to do in a grow where you don't know ppm, but then you can just feed a little here and there, and see what happens.

when i drip i pump water with fert already. i currently have 1/3 strength of Grow Big and CalMag+. i usually measure with teaspoons but my ppm meter is being shipped from australia and i dont have the tracking number yet. and as for the air in my grow closet, i'm pretty sure i'm giving a good amount of airflow with a small fan blowing air on and around the plant.

[highdogs25]

O! You are using CFL's! Well in that case 8-12 inches from the top and reduce direct contact from the fan. Id go with 12 until you see new leaves that aren't curling. Then slowly as you raise your humidity and lower your temp abit I keep mine at 76 you plants will be hummin along nicely and you can drop them down to 8 inches. To be truthfully honest CFLS are only good for veg. They dont flower very well on their own. So i'd suggest getting some flower boost and vegging them up for as long as you can. If you keep them on a 16-8 cycle they wont go into flower. When you do eventually want to kick them into flower go with a 12-12 and dont flower them for too long or you will wakeup to dying buds. Check out my CFL grow log Cannabis.com - Medical Marijuana, Medical Cannabis, California Club, News, Videos, Dispensary, Co-op, Co-ops, Menus, Reviews, Los Angeles :: Member :: Concaucsions if you have any questions and dont find the answers there just send me a msg mate

yeah i now have them under 2x 100 watt cfl's at 1600 lumens each and a 24" florescent at 1225 luments i think it uses 18 watts but puts out more. and what do u mean dont flower them for too long?

[ConcaucsionS]

By dont flower them for too long I mean, as it stands now the plants are in their Veg cycle. And will remain that way until you give them any less than 16 hours of light. A good Veg cycle is usually 18 on and 6 off, where as a flower cycle would be 12 on 12 off. The longer dark period promotes flowering. But with the way CFL's flower a plant it can be very deceiving. The buds dont grow very big so often people will let them grow for too long in the flower cycle and they begin to die. You have too remember when its under a light its not like outside where the plant determines its own life cycle. Once the plants are flowering they're not far off from dying. Thats why its important to not wait too long but not to get impatient either. You'll notice the buds at the bottom of the plant starting to brown abit before anything. If your the kind of guy thats gonna wait until that point I guess thats when you'll know but for me I crop down and restart after 1-3 months at most of flower. And 3 is REALLY pushing alot of times I find myself only doing 1, 1 and a half. Its all about the feel yknow? Comes with time and experience. Eventually you ll just know when its ready. Kinda like cooking steak or a buger on the BBQ without a timer

[CrackLemonade]

Leafs curl because they cannot expel water fast enough to keep themselves cool. Lowering the temps will fix this problem
Thats what my grow bible says. The pic shows the exact same problem.

I have that exact thermometer/ RH meter. Its nice cause the numbers are big so you can read if far away easily.