View pics to help please

Newmmc

Newmmc

Well-Known Member
image.jpg Leaves are turning pale yellow from the center of plant. Only new growth is affected. Also today I noticed on a few plants the edges of the leaves are folding up at the edges?? Some leaves are twisting upside down Lower leaves are dark green. I'm growing in coco under 1000 watt mh. My light is 2 feet above plants too close??? I just raised the light to a little over two and a half feet I know it's not the heat but maybe the light ??On my fourth week in veg feeding about 8-900 ppm My room temp is 77-79 please view my pics and help me solve this. Any input all is very appreciated thank you image.jpg image.jpg image.jpg
 
charface

charface

Well-Known Member
Diddnt mention if the hood is air cooled.
But light bleaching n heat would be my guess. Temps directly under the light differ from general room temp.
 
Newmmc

Newmmc

Well-Known Member
charface said:
Diddnt mention if the hood is air cooled.
But light bleaching n heat would be my guess. Temps directly under the light differ from general room temp.
Click to expand...
Thanks for the reply. The hood is air cooled And I have a thermometer at the canopy of my plants. Stays at 77. Never goes over 79. So do you think it's from the light?
 
charface

charface

Well-Known Member
Honestly i have air cooled properly raised
good temps n humidity and a few of mine look the same in some places.
For me its not a biggy.
Im not a coco guy but maybe tell us about your ph and coco dudes will hook ya up
 
jondamon

jondamon

Well-Known Member
Your plants look fine to me!

What's the runoff ppm testing at when you water?

How frequently are you watering?

What pH are you setting your feed solution?

The leaf edge roll up can be caused by heat, wind and humidity.

Usually more often than not its an oscillating fan causing leaf surface RH to drop which in turn causes the leaf to curl up to retain moisture.




J
 
Newmmc

Newmmc

Well-Known Member
charface said:
Honestly i have air cooled properly raised
good temps n humidity and a few of mine look the same in some places.
For me its not a biggy.
Im not a coco guy but maybe tell us about your ph and coco dudes will hook ya up
Click to expand...
Im using 75 percent coco and 25 percent promix . My ph is 5.8 every feed There are 5 bubba og and 4 sour diesle plants. All s1s The bubba og plants seem to be the more affected plants.
 
Newmmc

Newmmc

Well-Known Member
The ppm and ph come out exactly the same as when they go in And the ph goes in at 5.8
Right now I'm feeding every other day or longer. Depending on how moist the coco feels I can't get a good photo of the yellowing that I'm noticing but I'm also noticing those particular plants that are affected seem limp
 
Newmmc

Newmmc

Well-Known Member
Thanks for the help guys a raised the lights yesterday and they look much better Now I have to worry about stretching them... So diabolic 6.3 ph. That's what you run ?? I'm new to coco and I've been doing lots of research and I'm seeing a lot of different opinions .
 
jondamon

jondamon

Well-Known Member
I'm a coco grower and very rarely actually have to adjust my pH.

As long as its somewhere between 5.5-6.2 then I don't worry.



J
 
Diabolical666

Diabolical666

Well-Known Member
Newmmc said:
Thanks for the help guys a raised the lights yesterday and they look much better Now I have to worry about stretching them... So diabolic 6.3 ph. That's what you run ?? I'm new to coco and I've been doing lots of research and I'm seeing a lot of different opinions .
Click to expand...
You could try it to see if it makes a diff...its worked for me before
 
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