Guys please what does this mean?

I’ve seen this on my cannabis seedlings and wants to know what the problem is

Not real sure.. Possibly the start of a mag deficiency..

Turn the leaf over and look closely with a jewelers loop. Could be spotted mites.

If you started with clones from a dispensary, it's common for them to have mites. Also, if you have pets in the area when you grow, or if you've been outside doing yard work.

It sure looks like the beginning of a mite issue to me.