No sure what this is

[ManQuarium]

These red dots are increasing. They are not harming anything that i can tell. Should I be concerned?

 

[Jekyl]

Hard to tell what you're looking at. Only red I see is the coraline

 

[REEFTIDE]

Can you please draw an arrow or circle what you're looking at?

 

[landlubber]

if you can brush it off easily its likely cyanobacteria if not then chances are its coraline algae.

 

[Reefer Reboot]

Red dots ? Planaria flatworms?

 

[ManQuarium]

 

[ManQuarium]

these red dots are raised and I never see them move

 

[ManQuarium]

Can you please draw an arrow or circle what you're looking at?