someone know how to prevent this?

i have all my leaves curling under. they are in their second week flowering and i get this prob every time. never affects the plants but goddamn they would look better if they didnt have it. i always get a high yeild so.............

please any ideas?

I'm just guessing here, but how are your temps?

Could be heat stress? If no, sorry, no idea. Good luck anyhow.

my temp is always 31 and they seem to love it. if its heat im not worried. they grow like 2-3 inches everyday and are right on track as usual. thanks

hows you're ventalation and do you have a fan on the go man

is that a bubbler??? they kinda look over watered to me.

yeah i got good ventilation. inline 156 cfm with a carbon filter and homemade co2. the grow is ebb and flow. heres some pics or you can check out my grow journal. growindoobs 2x4 ebb and flow journal. i just raised my light to its max.

It is the heat from the lights.

No worries if they are growing that fast.

They will really start drinking in a few weeks.

May want to back the light up 3-4"s to combat the tip burning.

This could also be a side affect of nute burn.
With nutes less is always more.

yeah my ppm is hella high right now. i was shooting for about 1600 by end of week 7. just fuckin around with a few theries. plus advanced says you can go even higher but ..................... Even with my other grows where i have only reached 750 ppm by end week 7 it still happens. could be the heat but their growing like wild fire. im gonna have to use phosphoload on them soom so the quit growing vertically.

my light is at max height now. about three feet.

Ahh, after seeing how close your HID is, it's definitely heat issues (could be also enhanced by nute burn..etc)

Just back the light up and you should be sweet!

By they way, very nice set up

thanks man, thats great to hear. its so small, just 2x4 foot, it cost me over 2000 now (i just love to grow). i just put in the vertical elicent inline. their soooo quiet.

and my light is at its max height, i have a plant groth regulator called phosophoload (dutch master) which stops vertical growth completly and just focuses on outward bud growth. hope it works. i havent tried it yet.

I am going to estimate that they are going to get alot bigger! They are already big, and your only in second week of flower.

Maybe implementing that phosophoload now wouldn't be such a bad idea

yeah their growing alot faster than i expected.

im using dutchmaster folitech and max fx and its amazing. folier

my base is advanced nutrients. been using it for a while now which is why my ppm is so high. im pushing it a little to see how they grow.(which is fast by the way)

i think im going to use it as soom as soon just as they start flowing nicely. mabye another 4 or 5 days or your right, their gonna be too tall.

but is it the leaf curl?