help??

[365seasons]

Thank you!
I hope they are beneficial. I'm not sure if they look like those little things posted.
They're too small to tell.
Just little white squirmy things.

There was nothing living in the shell when we pulled it out. I have a feeling that they may have come from our live rock, as we also found a dead crab that is about an inch and a half...it just kind of showed up one day.

Our tank is a 60 gallon, is that still too small for a sand sifting??