Calcium def or leaf septoria or something else

[bsl333]

Hey, I am growing in living soil and am on day 23 of flower. I noticed some spots on a few plants leaves last night and wasn’t sure if this was a calcium issue or leaf septoria, or something else entirely.
humidity was running high until last Friday, but the inlet fan was running pretty high at night so I thought there would be good air circulation. I got a dehumidifier now, so temps and humidity look like:
70-77 F
63-70%

Appreciate the help!

 

[Billy the Mountain]

Septoria has the appearance of little "bullseyes"; it's quite distinctive and thankfully you don't appear to have it.

Very well could be a calcium issue, but just a guess at this point.

The tiny holes/spots in the second and fourth pic look like possible bug damage. Have you thoroughly inspected for critters?

 

[bsl333]

Septoria has the appearance of little "bullseyes"; it's quite distinctive and thankfully you don't appear to have it.

Very well could be a calcium issue, but just a guess at this point.

The tiny holes/spots in the second and fourth pic look like possible bug damage. Have you thoroughly inspected for critters?

I’ve checked for bugs, there’s some fungus gnats but not an overwhelming amount. I did have some mold mites (supposedly harmless) a few weeks back, but the dr zymes sprays seems to have knocked them back. Didn’t see any yesterday under the scope. What bugs would you expect to do this sort of damage?