Leaves dry and curling under???

[AirBuds]

I'm growing 3 Amnesia Haze Autos in OF soil and having some trouble with 1. Other 2 are growing great.

All 3 have been growing from seed since 10/18 so they are just over 2 weeks.

I started feeding some big bloom but have since stopped after talking to Muddy since nutes are in the soil. I'm only watering with distilled water every 3-4 days. Runoff PH has been close to 5 so I added dolomite lime to the soil about a week ago so trying to bring PH up.

I'm using a 300w LED about 10" about the plants. Also have a small desk fan blowing above the plants. Humidity is usually between 40-53 and temps stay between 70-79 degrees.

As you can see from the pics, the 2 to the right are getting some good size and look very healthy while the one to the left is small and looking very dry.

 

[Happy Horticulturist]

Muddy would be the man to speak too. He knows OF soil where as I' have zero clue about it.

I Can only guess and say that 5 pH run off is a bad sign. Not sure what the run off of this soil should be though...

I would possibly look into flushing this plant and get that run off pH back into the acceptable range

 

[AirBuds]

Muddy would be the man to speak too. He knows OF soil where as I' have zero clue about it.

I Can only guess and say that 5 pH run off is a bad sign. Not sure what the run off of this soil should be though...

I would possibly look into flushing this plant and get that run off pH back into the acceptable range

Yes I talked to him about a sick reg plant in same soil n he suggested adding dolomite lime to bring it up but it's slow acting so I wouldn't be seeing any changes until after about 2 weeks. Just wondering if it could be something other than the soil bc the other 2 don't seem to be affected by it as much if at all..

 

[namvet25]

First off , I would raise your lights up to 24 inches when plants are that small.The small one may have got too many nutes so hold back a week or so.When you start givng nutes again use veg nutes not bloom nutes and make sure your feed water is at 6.5.

 

[ThaGreenBandit]

With the LED's only being 10" above your plants, they're not really having to reach much, and those nodes might really start to stack on top of each other. My light was 20" above my plants, and I had nodes that were too tightly packed together. I'd definitely get that pH fixed, though. A pH of 5 is gonna cause some issues

https://www.google.com/search?site=&source=hp&ei=-bVXVIK1EJbCsATf9oDQCg&q=nutrient+lockout+cannabis&oq=nutrient+lockout+&gs_l=mobile-gws-hp.1.0.0l5.1555.9122.0.11594.20.19.1.12.12.0.484.4250.0j11j3j3j2.19.0....0...1c.1.58.mobile-gws-hp..1.19.2097.3.Vgwoua0U8#q=nutrient+lockout+cannabis%3B+chart&facrc=_&imgrc=IEsbmNB-iJNiPM%253A%3Bundefined%3Bhttp%253A%252F%252Fwww.thctalk.com%252Fgallery%252Fdata%252F500%252Fuser17219_pic14203_1233853343.gif%3Bhttp%253A%252F%252Fwww.thctalk.com%252Fcannabis-forum%252Fshowthread.php%253F11726-Ph-Lockout-Chart%3B600%3B335

 

[shadeyman]

Humidity is a little low for seedling i guess. From what i've known and works for me, ideal humidity for seedling is around 60-80%. But don't take my word for it, i might be wrong. Dont worry, there will be experience grower dropping by and help u out. Cheers

 

[AirBuds]

First off , I would raise your lights up to 24 inches when plants are that small.The small one may have got too many nutes so hold back a week or so.When you start givng nutes again use veg nutes not bloom nutes and make sure your feed water is at 6.5.

Ok.. I had them about 20" away n read that the closer the better so I will raise them back up. Thanks

 

[AirBuds]

With the LED's only being 10" above your plants, they're not really having to reach much, and those nodes might really start to stack on top of each other. My light was 20" above my plants, and I had nodes that were too tightly packed together. I'd definitely get that pH fixed, though. A pH of 5 is gonna cause some issues

https://www.google.com/search?site=&source=hp&ei=-bVXVIK1EJbCsATf9oDQCg&q=nutrient+lockout+cannabis&oq=nutrient+lockout+&gs_l=mobile-gws-hp.1.0.0l5.1555.9122.0.11594.20.19.1.12.12.0.484.4250.0j11j3j3j2.19.0....0...1c.1.58.mobile-gws-hp..1.19.2097.3.Vgwoua0U8#q=nutrient+lockout+cannabis%3B+chart&facrc=_&imgrc=IEsbmNB-iJNiPM%253A%3Bundefined%3Bhttp%253A%252F%252Fwww.thctalk.com%252Fgallery%252Fdata%252F500%252Fuser17219_pic14203_1233853343.gif%3Bhttp%253A%252F%252Fwww.thctalk.com%252Fcannabis-forum%252Fshowthread.php%253F11726-Ph-Lockout-Chart%3B600%3B335

Thanks.. I should have mentioned than I lowered the lights.. they have only been 10" for the last 2 days, gonna raise them back up

 

[steelrat]

AirBuds, read this, it's a great overview of the general phases in the auto process, happy growing mate

https://www.autoflower.org/f44/life-cycle-auto-flowering-cannabis-5113.html


All the best,

steely

 

[namvet25]

https://www.autoflower.org/f109/grownorthern-manual-13528.html