help! w/ photos, 31 days old ww auto problems!

hey guys, so i'm a noob coming across some leave problems which I can't seem to deal with..

setup:
1. GROW MEDIUM
soil, ATAMI Kilo-Mix
2. TYPE OF WATER
tap water ph around 5,6
3. TEMPS & HUMIDITY
18ºc(68F) night 29º(84F) day, humidity around 50%
4. LIGHTING SYSTEM
250 HPS 18/6
5. VENTILATION SYSTEM
cooltube+intake fan+ventilation fan
6. NUTRIENTS USED
Bio-Nova soil supermix about half strength and rootjuice
7. STRAIN (IF KNOWN )
3 white widow Autoflower from dinafem, 2 are 31 days old the other is 23.


the pics are had to be taken in a hury so they are crap... i water them every 4 to 5 days, i fed them twice at half strength with water in between.. besides the lower fan leaves have turned brown, the leaves are all clawing..



again sorry for the poor quality of the photos... thanks for the help!

Turn off the hps!

i had the same problem with my buddha autos , all the new growth was clawing ,mine are fine now and i never got to the problem but it looks hot in there man . i am using canna nutes but i have been holdin back with the canna boost . every week i give mine cannazyme do you use some kind of nute conditioner ?how far is your light off the canopy ?

here are the photos with the hps turned off! (the first 2 photos were taken about 1 week ago the others today.)

redspektrum i have only fed them twice with some soil supermix but no i dont use nute conditioner infact i dont really know what that is... they are about 30 cm/10 inches but the light is in a cooltube and the temps are all day around 27ºc/80F only around mid day it gets hotter 31ºc/87F max.

.......bump

thanks for the help, i will have to use a forum that people actually help each other

STFU bitch, go to grasscity...your plants will fit right in over there

nice mattemil.. real friendly... i guess you dont grow good shit or else you wouldnt be such a fucking pussy