Snowflake Eel?

[Kabong]

Really you can't just blame the store on this one.
You should really be doing your own research.
"Reef Safe" is a very loose term to begin with.
Technically they are coral safe and fish safe.
Keep him well fed and he may even be invert safe.
However yes you will have to feed him from a stick.
Feed him then put the krill in for the other fish.