The Snowflake Eel is safe to house with any fish it cannot easily swallow. It can be housed with some invertebrates, like anemones and corals, but not crustaceans. I would guess a snail might taste good
Thanks, I have my biggest 2 turbo snails in that tank right now. When the eel gets bigger i'll just put them back in the reef tank. Searching online gave me the same answer. Some people lost a few and some never had a problem.