Leaves look like claws

[James197467]

Hello all I'm new to growing autoflowers in my fourth week. 2 white widows & 2 Lamb's breath in a 2 x4 grow tent with 400w HPS lighting 20 hours on 4 hours off using 3 gallon fabric pots and ffof soil. The plant as healthy color fan leaves are nice and big and full but the new top growth is drooping and very stiff not sure what's going on.

 

[Rev. Green Genes]

It looks like a watering issue to me. How often and how much feed are you giving? Are you checking pH? Also, a natural light picture would make for a better diagnosis. soil has been known to have issues with both pH and gnats. I havn't heard about gnats getting shipped in a while, but sometimes early fungus gnat infestations make the plant look like it's overwatered.

 

[James197467]

Thank you for your reply or rather answers. Yes I am using OF I'm in my fourth week and I have not used any nutrients yet. I have read all over that the ffof has enough nutrients in it for the first 4 to 5 weeks. And yes I have been catching a lot of fungus gnats on my fly paper. Would you recommend using hydrogen peroxide or neem oil treatment or both please advise.
Thank you

 

[Mañ'O'Green]

Thank you for your reply or rather answers. Yes I am using OF I'm in my fourth week and I have not used any nutrients yet. I have read all over that the ffof has enough nutrients in it for the first 4 to 5 weeks. And yes I have been catching a lot of fungus gnats on my fly paper. Would you recommend using hydrogen peroxide or neem oil treatment or both please advise.
Thank you

Be careful with h202 it can burn your roots and kill beneficial soil microbes. Neem, BT (Bacillus thuringiensis), diatomaceous earth, and sand can all be used to stop an infestation. Neem and then a top dressing of sand or diatomaceous earth should work.

Please get a 5000K CFL for pictures and see if you can get them right-side up. It really helps us diagnose your plants.

https://www.autoflower.org/threads/sideways-pictures-upload-fix.67227/

 

[James197467]

Could I also ask some advice about nutrient feeding I have the General Hydroponics Flora Series Trio and a bottle of Cal Mag not sure how much to give it for the first feeding there's so many different schedules online I don't know which one to use.

 

[James197467]

Maybe these pictures will be better and also I don't know if I'm overreacting but you see the yellow spot on one of the white widows but that's the only spot on the plant. And I had a staff member answer me the other day about watering and I haven't watered them since Tuesday letting them dry out some what and they're looking so much better today.
not sure why the pictures are upside down.

 

[Mañ'O'Green]

I just get dizzy looking at upside down pictures. It is just a spot.............

Could I also ask some advice about nutrient feeding I have the General Hydroponics Flora Series Trio and a bottle of Cal Mag not sure how much to give it for the first feeding there's so many different schedules online I don't know which one to use.

General Hydroponics has an online calculator - use it for your calculations for nutrient strength and timing. I urge you to use the entire nutrient lineup for the type of grow you are running.

 

[Rev. Green Genes]

So with all nutes, with auto's anyway, you want to feed water for a week or 2 or try to go till maybe the second set of adult leaves open some. Then use 1/4 strength nutes. They do not necessarily need calmag at this stage, but if you see some yellowing on the older leaves than you know you need a bit more nutes. If you see the leaf tips burn up, or the tips turn down like a claw, than you are giving too much nutes. I do not know the actual mm per liter for GH, but just cut whats on the bottle by 4 times and go with it.

Another thing about fox farm soil, it is loaded and you can get away with 1/4 strength for a longer time with it as well. The big issue with that soil being so hot is that if the pH does get off, the issues get magnified some. I recommend getting yourself a soil probe like the Accurate 8 or a blue labs truncheon so you can identify problems when they arise.

 

[Waira]

.... yup, OF is rich (N especially), but hardly a complete and properly balanced source of nutrients, plus their soils are NOT what they used to be,... often badly acidic too BTW,...
consider using just the Micro and Bloom, skip the grow ... this is basically what's called the Lucas formula,....