Help identifiy a critter in my tank's substrate and wood.

[Faedother]

Hello,

I would like help identifying some critters that scurrying around in my tank. They keep to the drift wood and the substrate. They can be found in the rock pile in my tank feeding off the mulm at the bottom. I have attached the best pictures I could get. They are very smaller. Smaller than my molly fry and baby pest snails.

Thank for any and all answers,

Feadother

 

[H.K.Luterman]

They look like some kind of ostracod, or seed shrimp. Totally harmless and make good fish snacks. 

[Faedother]

That is what I thought. But when I looked up pictures, the colorization of the shells did not match. That is why I was wondering. Thank you for the reply.