New Grower what does this look like?

[steelydan]

All 5 plants have the same conditions so it can't be nute burn ot liight burn, any ideas?
cheers
norman wisdom

 

[james76208]

whats your ph running at cause its the next trouble shooting step

 

[steelydan]

am using biobizz soiland nutes, don;t have a ph tester

 

[lazylathe]

What is the temp in your grow room or cab??

Looks like classic heat stress symptoms to me.
Add some more ventilation or fans or an AC unit if the temps are too high.

 

[mikey1]

It's possible one plant is a bit more sensitive than the others, after all, they're from seeds and therefore not genetically identical. It does look slightly over-fertilized and also heat stressed to me. I notice some cupping of the serrated leaf edges, also visible on the plant in the back of the second pic...possibly the air is a bit too dry in there too...and possibly the lights are a little close. Light intensity, temperature and humidity are all inter-related and need to be monitored and controlled. Do you have any idea what the relative humidity is and are you controlling it? Make sure your fan isn't blowing right on the plants too, that will dry the leaves out if the humidity is marginal.

I recommend getting a decent pH meter because it's so critically important to maintain proper pH. Drops or test strips are not ideal but better than nothing if you can't afford a meter.

 

[mikey1]

I should have mentioned that correcting your conditions will not bring back the curled leaves etc.... you will see improvement in the new growth however.

Check out the questionnaire in the infirmary section:
https://www.autoflower.org/f90/trou...uestions-first-before-posting-yours-8519.html

Fill it out and post it on this thread if you need more guidance, good luck with your girls!

 

[steelydan]

Thank you all, I will get a thermomenter to check the heat, i will aim the fan at the floor so that air is exchanged without the fan being directly on the leaves, as for humidity? not sure. The window are open and as i have been in india my guess is the humidity is zero but i could be wrong on that.
great info and i will get back soon
cheers
norman wisdom

 

[steelydan]

Just a thought, will a large bucket of water be of any use for humidity/
cheers
norman wisdom

 

[steelydan]

Just another thought, if it is too much nutes would a flush remedy it?
cheers
norman wisdom

 

[lazylathe]

A bucket of water will not work.
What you can do for humidity is soak large towels in water and hang them above an empty bucket.
Have the fan bow on the towel to raise the humidity.

If it is too much nutes a flush would help the newer growth.

I still think it is too hot in there.
What lights are you running?