What is crawling around my zoanthid?

[Jtswan96]

Hello everyone. I got a chance to take a look at my tank using a flashlight tonight after dark. I identified some critters crawling around on the rocks and frag plugs. Was unable to visualize these critters using my naked eye, but could see them after zooming in with my camera. The tank does have a refugium and copepods were added. Is that what these are or do I have a pest? Video attached

 

[Cment]

Great video but Im unable to see exactly what they are. The black dots Look similar to baby spider eating zoanthids but cant tell. Lets get #reefsquad to help

 

[KJ]

Look like Ostracod.

 

[Ron Reefman]

Nice video! I wish I could offer some help but I've had very little experience with pests and fish diseases.

 

[AdamB]

Hello everyone. I got a chance to take a look at my tank using a flashlight tonight after dark. I identified some critters crawling around on the rocks and frag plugs. Was unable to visualize these critters using my naked eye, but could see them after zooming in with my camera. The tank does have a refugium and copepods were added. Is that what these are or do I have a pest? Video attached

Can’t see the file but I’ve had a Zoanthid eating snail in my colony. I didn’t see it until one night I shined light on colony and saw a different patterned snail shell amongst and then done research and found that pest info. You never stop learning stuff with this hobby