Itty bitty creature ID

[ggNoRe]

I have found this little creature that looks similar to a transparent ant. He's extremely light sensitive and dissapears into his hole as soon as I can spot him with the flashlight. Also he's really small maybe just 3 or 4 millimeters. He kind of reminds me of plankton from sponge bob a little oval with 2 tiny antennae. Any ideas what it is? Good? Bad?

Thanks in advance!
:mrgreen:

 

[Gigaah]

Isopod is a good bet. Check this link.
Melevsreef.com - Isopod

Here are some pictures in a post I took personally of Isopods in my tank
https://www.livingreefs.com/amphipod-and-copepod-pictures-t26304.html
scroll down half way to my 2nd post in that thread.

 

[ggNoRe]

Sweet thanks! Looks a little more like your copepod picture.