Shrimp larva?

[DaFrog]

I have half a dozen of these against the glass of the tank - Each is in a tube that is between 1/4 and 1 inch long and 1/8 inch wide - They can of look like translucent shrimps with black on their back - On the picture below, I believe that the head and claws are toward the left on the picture below - So, what is it and what should I do?
(new tank with aquacultured florida live rock and a lawnmower blenny)

 

[Snowboarda42]

You could make shimp salad, shrimp pasta linguine, popcorn shrimp, shrimp cocktails, etc.

Just kiddin.

Let them be and see what happens...or put them in a seperate tank?

They almost look like little mantis shrimp to me, I'd put them elsewhere if you want to avoid mantis shrimp.

 

[LeslieH1]

Those are full grown amphipods. there are many species that make tubes to live in; I think it's cool you have them against the glass & can watch them. They're harmless detritus feeders & potential fish/coral food.

 

[DaFrog]

Thxs - I then guess they'll become food when I get more fish