Help ID

[Pennekampdream]

Hi, today I noticed these tiny specks moving on the surface of my back sump. They seem to dart around randomly in very small quick spurts then stop. They seem to be the size of a small grain of sand and white in color.
My tank is 20 gal with a rear sump. It was gifted to me about 3 weeks ago but the previous owner had it running for about 1 year.

 

[PharmrJohn]

Pods

 

[NonstopSoda]

Copepods! Great for a tank : )

 

[Pennekampdream]

Copepods! Great for a tank : )

Great news. I was worried it would be my 1st battle with something bad