Which is a good snowflake eel tankmate? (corals and sesile inverts such as sponges too)

[Picasso the Triggerfish]

So, im searching a tankmate for my future snowflake eel that fits in a 50 G tank, Any ideas apart of maroon clowns?

 

[Webslinger]

i have royal gramma,longnose hawk,yellow wrasse,filefish,damsel,clowns,mandarin,flame angle and dwarf morey. Never feed it fish!

 

[DaddyFish]

My snowflake gets along just great with a Diamond Goby, Valentini Puffer and one BIG hermit crab. I have no idea why she doesn't munch on the goby, especially since he constantly places himself between the eel and her food. I've seen her bite the puffer many times as they compete for the same food morsel, but it's apparently a love bite that never injures the puffer.
Like most fish, the eel is a strange one with unique personality traits.