Anyone seen this weird shit

any one seen this before? fox farms ocean soil ff tiger bloom open seseame not at full strength more happening on some plants than others water ph 5.7 havent done a pour through ph test yet Ive had it happen to me before when i wasnt using ff ferts so ive ruled that out. The soil? almost looks like a worm or slug trail but its not. Stumped, ive done research, looked thru hundreds of pics............no luck

Your infested with "leaf miners".

thnx pan, youre right on the money

how do you go about getting rid of those?

they don't kill the plant. its just an aesthetics thing. clip the bad leaves if your plant is tall enough to withstand a clip or two. theres spray that takes care of it, but its kinda pricy.

Leaf minors may not kill your girls but they could interupt the growth process and confuse your plants. If it were my plants I would spray them with some neem oil and get rid of the minors.

Just my opinion though. Wait to see what the real pros say