Dots on plants? Orange-ish and Purple stems

[SDJ99]

Hi all. I’ve fed these plants once so far with fox farms fertilizers. They’re also in fox farm potting dirt and worm castings. I fed them last Wednesday. I have watered them once since then. (I know the one is overwatered from the seedling stage where I was learning the hard way).
these spots have appeared within the last 3 days.

 

[SDJ99]

Please help with these spots identification

 

[Madbud]

Just from overwatering earlier, they won’t get better but are still feeding the plant. You got this.