Lower leaf getting red brow dots ?

Hi everyone

Well I have 4 autos growing outdoors . Something was munching on my plants got holes bastards I think it was a snail I seen the slime or what ever it was . Then the more troublesome problem on my plant the lower leaf are getting these dots red brown all ever I would like to know if it deficiencies or bug problem .
It would really help there about 1 month old I cant get a pic right now . thx and peace

post a pic otherwise all i can do to help is

https://www.rollitup.org/marijuana-plant-problems/38772-guide-diagnosing-plant-problems.html

here...................

Get some Slug Bait, or copper strips. Slugs be nasty things.

Ok thx for the help just today I found one slug