jack here beginning to show some discoloration please helppp

well my jack herrer automatic is 13 days old and part of the leaf is starting to show discoloration started about two days ago little by little its getting slightly yellowish greenish, i have it in a 32 oz container with about 40 coco perlite 10 percent manure, 10 percent compost and 40 percent mixed soil from my southern california rich soil

as you can see in the first picture there is some spotting kinda ish doesnt look to serious but better to fix the problem now then when my plants really in danger as for the right pic you cant see it but in one of the newer leafs there seems to be small hole going trough it this is bugs right any recipes that i can make from home??

and also as you can see in the first pic and knda in the second pic the first true leaves or seed leafs as some people call um turned light brown and has a cut trough the middle witch i did not do

Looks decent to me man.
That's the first true set of leaves, some times they die after while.
New growth looks good.
IMO- I would buy a bottle of Cal/Mag give it to all your plants once a month, you can avoid a few problems by doing this.

If the problems spreads leaves turning light green, dead necrotic patches it could be the start of a Phosphorus deficiency -IMO
Don't over do the Cal/Mag to much Magnesium can start to lock out Calcium.