Tiny Yellow Spots

[MissTricky75]

I just moved these beauties over from cocoa to hydro last evening anf theyre looking great but I'm noticing tiny yellow spots. Any suggestions?

 

[Koondense]

Anything moving on bottom side of the leaves?

 

[MissTricky75]

Anything moving on bottom side of the leaves?

No. There are no mites or anything like that.

 

[Koondense]

Interesting, I would think about mites or mosquitos first, it's weird if related to medium or nutrients. The spots look random which can mean airborne pathogens but I'm not an expert.
Hopefully someone with more knowledge will chime in.

Good luck