mantis shrimp

So I have had a peacock mantis shrimp for a while in a 30 gallon reef tank. I just bought a 60 gallon tank to upgrade to. I was wondering if it would be a bad idea to put a snowflake eel in with a mantis shrimp. Any comments?

I have seen videos of people feeding their mantis shrimp a clam, of a fiddler crab. Is it okay to feed a mantis shrimp a freshwater clam, or crab?

I just purchased a peacock mantis shrimp online. I aclemated it properally, put it in (with only lunar lights on) and came back to fing it on its back, agnist a wall. Its alive, it cleans its eyes and what not, its almost acting like a cat. People said online when mantis shrimp are on there...