Tiny critter looking thing in QT tank

[joon1004]

I got a few corals a few weeks ago and I noticed there’s a sizable population of these really tiny creatures. I did dip with coralrx before introducing the corals but I assume there were eggs. They’re about a mm or less and hang at on surfaces and crawl around it seems to have shell. What are these? Are they pests? Should I avoid putting them in my display?

 

[joon1004]

Here’s a picture of one I got out of the water not sure if this helps but it definitely is some kind of crustacean

 

[Gumbies R Us]

@ISpeakForTheSeas

 

[ISpeakForTheSeas]

Here’s a picture of one I got out of the water not sure if this helps but it definitely is some kind of crustacean

@ISpeakForTheSeas

Welcome to Reef2Reef!

It's really hard to say for sure from the pics (the critters are tiny, so no blame from me on that one), so I can't give a solid ID here (clear, closer-up pics under white light would help). That said, possibly a Seroloidean Isopod (A.K.A. a Trisobite/Sand Skater)?