Pinched leaves

I'm starting to notice some leaves on a couple of plants are "pinched" in a few spots and would like to know what I'm doing wrong before it gets out of hand. Is this the sign of Calcium deficiency?
 
Big Thai

 
Pepperoncini
 
 Plant looks healthy to me . Maybe a little epsom salt will  green it up but doesn't look bad at all . 
 
That stuff happens to me all the time, also some warping of leaves. Could be a bug or could be nothing at all, don't sweat it
 
Could be anything that happened to the cells while they were forming/dividing that caused them to not form the leaf perfectly. This could be from an abnormality in the cells themselves, or it could be from being slightly grazed by something while the leaf was smaller and growing. I do not think that what you have there is being caused by a disease, virus, or neglect. Keep doing what you're doing!
 
If you continue to see the problem or it gets worse look into throwing a little bit of epsom salt into some water and spraying the leaves down.
 
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