Little white specks

[hopperjl16]

Any help on ID'ing this stuff? They are little (1-2mm) organisms that move quickly like little water bugs. They appeared overnight and seem to be localized on the glass where I have some algae. My tank is only 2.5 weeks old and I just introduced some invertebrates (emerald crab, fire shrimp, astrea snails, nassarius snails and hermit crabs) 4 days ago. I started with live rock so I suppose they could have rode in on that too.....
Anything I need to worry about?

Thanks!

 

[Lionfish Lair]

They're copepods. There's probably some isopods on there as well, but I'm not seeing them in the picture.

 

[redfishbluefish]

I would imagine they are isopods and/or copepods.

 

[Lionfish Lair]

You'll also notice there's a couple of shapes in there. The arrow is pointing to one that has eggs.

 

[hopperjl16]

This is a good thing right? Lol. So I just leave them alone?

 

[redfishbluefish]

That's a real good thing. You'll most likely have fish that will eat them.

 

[TD13]

This is a good thing right? Lol. So I just leave them alone?

Yep, beneficial bacteria!!!! Plus food for some wrasses and gobys