Starfish in a 20gal long reef?

[James Black]

Hey all,
Saw a starfish at my LFS today and makes me wanna get one. Is their any starfish that will be fine in a 20 gallon long reef aquarium?

 

[Uncle99]

Except for some serpent stars and brittle stars, none generally live long in any size tank.
Not sure why they sell these things, except easy profit.
I know food availability is an isssue and they don’t seem to take well to the glass box.