Yellow leaves,leaving folding, whats going wrong?

[pikeyz]

I have no idea whats going on, they're going into 12-12 tomorrow after 3 weeks of growing, they're going yellow on the leaves and the leaves are falling flopping. They're growing in Miracle-Gro soil, I've heard this might be the problem so am moving them into BioBizz also moving them into 3 gal pots.
Any idea?
Humidity is around 25% and temperature is around 70-80

This is the BioBizz I'm going to move them in to tomorrow: http://www.growell.co.uk/biobizz-all-mix-soil.html

I know the pics are rubbish but maybe the description will help.

 

[Stickystickyganja]

Hows your humidity and temps? Possibily rootbound?

 

[pikeyz]

Hows your humidity and temps? Possibily rootbound?

The pots are small so that's is very possible but I didn't think they'd yellow and start to die I thought they'd just stop growing?
If that's the problem then great because I'm changing the pots tomorrow so hopefully will fix that then.

 

[Stickystickyganja]

I would assume its that. This is pretty funny because I am too having the same issues except my plants had major droopyness aswell. I repotted today and fed them. within 2 hours later they are all perked back up. I removed the damaged leaves and snipped the tips off of the semi yello leaves. Stunted growth and droopiness and yellowing bottom up are signs of rootbound.

 

[pikeyz]

I would assume its that. This is pretty funny because I am too having the same issues except my plants had major droopyness aswell. I repotted today and fed them. within 2 hours later they are all perked back up. I removed the damaged leaves and snipped the tips off of the semi yello leaves. Stunted growth and droopiness and yellowing bottom up are signs of rootbound.

Thank you very much, I'll PM you tomorrow after I re-potted them and let you know how it went! Thanks!!!

 

[Stickystickyganja]

NP man. After you repot them you got to give them a feeding and possibily a light foliar spray. a few hours later you should se results. but yea let me know how it goes. Cheers

 

[brokenturtle3102]

Heat stress. Make sure you keep an eye out on temps. The temps might be too hot when the area is closed off. But it's heat stress.

 

[pikeyz]

Heat stress. Make sure you keep an eye out on temps. The temps might be too hot when the area is closed off. But it's heat stress.

Right, ok. I'll make sure something is done about that too. The plants where a little bit close to the light, we've since lowered them to 1 and a half ft so is better now, hopefully will get better now. *hopes, wishes, prayes*

 

[ismokealotofpot]

I would hold off on flowering rite now if I were you. They look like they need some nitrogen also. Your going to want to make those ladies green before you flower. The hps bulb makes it hard to see if you could turn it off it would help take a better picture.

 

[pikeyz]

I would hold off on flowering rite now if I were you. They look like they need some nitrogen also. Your going to want to make those ladies green before you flower. The hps bulb makes it hard to see if you could turn it off it would help take a better picture.

Ok, we'll give it another week or so in veg, I'll have better pics tomorrow.