Will my BABY 1-inch Mantis Shrimp eat Brine Shrimp?

[CHAMELEON_BREEZE]

I had a hitchhiker 1-inch long BABY Mantis Shrimp in my 75 Gallon Tank. I've always wanted one of these, so I had to dump it into my 5 Gallon. He's still a little baby and he hides a lot, and I'm wondering if I'm going to need to feed him in order for him to live to adulthood. Is Brine Shrimp okay for one to eat?

Also, how long is it going to take for him to grow to 2 or 3 inches. I'm planning on moving him to another tank so that way he doesn't eat my other precious inverts, like my crabs.

 

[richiep]

Guanchy as one of these this will tag him here

 

[Amazoniantanklvr]

WOW u r lucks those are BUTEEEEEFUL

 

[saltwater60]

Mantis shrimp will eat about anything. Try the brine shrimp if not try small frozen fish, crab, clams, mussels. They are pretty hardy and aggressive eaters.
as for the growth rate I’m not sure. I know they get rather large but it’s hard to say. Some crustaceans grow fast and some grow slow. Lobsters grow really slow.