Is my 'nems mouth supposed to look like this?

[WhiskeyCoffee]

Came home and my 'nems mouth was wide open so I thought I'd try feeding it mysis shrimp for the first time. The tentacles kind of 'grabbed' the shrimp and pulled it in and I believe now it's slowly sucking the shrimp into its mouth. Does this look normal?

 

[gunther13mt]

Mine does this when he is requesting food other wise it should be closed tight and not open

Sent from my VS880 using Tapatalk

 

[ThRoewer]

This looks like it is spitting food out.