What are these tiny critters?

[liamelias]

These tiny little guys are all over the back glass of my tank, I also see them around my sand. What are they? There are also even tinier ones around it. They look like centipedes lol

 

[ISpeakForTheSeas]

Munnid isopods - harmless/beneficial.

 

[liamelias]

Munnid isopods - harmless/beneficial.

oh awesome thanks, glad to know i have pods without having to introduce them