Starfish ID?

[ILMX20]

I found this baby starfish in my tank a few months ago, and didn’t see it for a while, so I assumed it was living in the rocks and coming out at night. He was on my glass today, and I just wanted to know if I could find out what kind of starfish he is. I’ll describe him as best as I can, because I couldn’t get a clear photo of the top of him (since he was on the glass.) It’s a dark (ish) pink colour, and it’s underside is white, he has five points,(legs?) and he’s a bit smaller than my pinky nail. I’ll attach the photos I could get.
many info would be nice

 

[fishguy242]

hi,i'm leaning good score,cannot zoom in to see if knobby/c chip family,let's get some expert help id here..
@KJ @samnaz ?

 

[RedFrog211]

Might be too young to ID, but I vote keep! Just keep an eye on the little fella and make sure he’s getting enough food

 

[ILMX20]

Might be too young to ID, but I vote keep! Just keep an eye on the little fella and make sure he’s getting enough food

Any idea what I should feed him?

 

[RedFrog211]

Any idea what I should feed him?

You could try small pieces of mysis or seaweed! Few things would reject mysis