Necrosis Spots on 2 week Seedlings?

Okay so I started a bunch of Dice (Diesil x Ice) seedling and took some N.L x Shiva clones off a mother plant at the same time. The Dice seedlings are coming out with these nasty looking necrosis spots on the leaves. The clones are in the same exact soil ( F.F Light Warrior) and are getting the same nutrients ( B.C Recipe for success) and show no signs of the necrosis. What do you think it could be?

Thanks for your help!

I'm not sure brother, but it's either nutrient lockout or a virus/disease. Their color looks a little rich, especially compared to the NL/Shiva clones. My guess, back off the nutes a little...maybe flush + reduce nutrient dosage(usually gets the job done). Likely there is too much of one nutrient that is cock blocking another. Probably too much potassium, that will interfere with calcium and magnesium uptake.

ClosetSafe said:

I'm not sure brother, but it's either nutrient lockout or a virus/disease. Their color looks a little rich, especially compared to the NL/Shiva clones. My guess, back off the nutes a little...maybe flush + reduce nutrient dosage(usually gets the job done). Likely there is too much of one nutrient that is cock blocking another. Probably too much potassium, that will interfere with calcium and magnesium uptake.

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Thanks for the suggestions. It ended up being leaf spot fungus... spreads quick and its pretty nasty. I bought some serenade and it seems to be helping... crossing my fingers.

Whats the problem?

I think neem oil works for that too, not 100% sure tho

Cal-Mag. Even if you're using tap, get some. 5ml per gallon EVERY watering.

max316420 said:

I think neem oil works for that too, not 100% sure tho

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Yeah, I was thinking about putting some einstein oil on them just for fun. Whats the difference between einstein and reg. Neem oil? Do you think I can use the serenade in conjuction with the neem?

Stomata said:

Cal-Mag. Even if you're using tap, get some. 5ml per gallon EVERY watering.

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In my regular weekly nutrient reg i use magi-cal by technaflora. Isnt that the same? except i only use 2.5 mL per Gallon. Maybe I should boost it up a bit.
Thanks.