How to care of a baby mantis shrimp?

[daniella3d]

Hi, I got a large piece of liverock with zoanthids today and cut it in many pieces and found a baby mantis shrimp in there. I put it in my nano tank that is without any fish, just 2 small blue legged hermit crabs, liverock and macro algae, lots of pods.

It is currently light brown and about one inch in length. It has the mantis ball eyes and the claw. It is not an amphipods, it is much longer than any ampipods I have seen and it has a different shape. From the bubble eyes, I am guessing it is a mantis, but not sure.

How would to feed it and care for it? I don't have any pic because I was cought off guard and put it in the tank right away and it went hiding.