tank mate for a lionfish

[JaiWiz]

yea i hear ya i'll let jus the lion hang out for now i already got a canister for it which i'm gonna fill with live rock rubble and keep the aquaclears packed with carbon (easier to change the media in a Aquaclear then a canister) and i will eventually get him a bigger tank. This is my Third tank i started with a 10 gal at home then upgraded to a 55 gal which has been flawless for over a year and i need to desparately upgrade that its too small for myself and the 6 fish i have in it. the lion is at my office i also have another 50 gal fish only tank at the office but it was no place for my prized lion so lol here i'am as for putting a fish in with the lion it was just a thought that i could find something that would be suitable in there it doesnt have to be a fish i plan on putting mushrooms in there and wanna know if there are any starfish or sea stars that would be good for the tank?