Salt?

I'm starting to have what looks like salt or salt residue on my lower fan leaves, this is my first grow and not to sure what this is. I'm using FFOF soil and fox farm nutes, and folair snow storm ultra. Other then this problem plants are very healthy looking and 15 days into 12/12. Thank you for your time any help would be great.

FF does tend to have alot of salt in its formula. do you foliage feed? you have pictures?

What kind of system do you have it in? I have had issues with waterfarm splashup, that left salts on the lower leaves. And I don't foliar feed, if you put salts in the water and spray the leaves the water evaporates and the salts don't. Period. Research and experiment thats all I can say about this,

wannaquickee said:

FF does tend to have alot of salt in its formula. do you foliage feed? you have pictures?

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Yes, foliage feed with Snow Storm Ultra, and its a little hard to get a good picture, only have phone to upload and cant get a good picture

its possible its just residue..its not powdery mildew is it? you can google that...

wannaquickee said:

its possible its just residue..its not powdery mildew is it? you can google that...

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No, its not powdery mildew. I know that much. Would a flush work or at least help? If so, how do I go about doing that? I've read a bunch like, mixing epsom salt into water, or running a ton of water through the pot, or buying some kind of flushing stuff. Whats the best?