How big is your tank??
For the most part you should be safe, if you happen to luck out with a Snowflake with a taste for fish... then eventually, only larger fish will work. For the most part, as long as you are staying away from fish 2" or under... should be good.
I'd be more worried about the eel if you are adding a Trigger.
I have a 2ft Snowflake and have a 4" Longnose Hawkfish, 5.5" Harlequin Tusk, 5.5" Magnificent Foxface, and about a 5" Yellow Tang. I do plan to add a Picasso Trigger and a Indian Yellow-tail Angel in the future...