Not really.
(1) Eels are very messy eaters and can create nitrate issues that are bad for corals.
(2) When juveniles, snowflakes also eat invertebrates, so it's hard to keep a cleanup crew.
(3) Snowflakes are evolved to be able to survive for short periods of low tide by slithering for brief periods on rocks. This makes them notorious escape artists. In fact, most die this way long before they reach maturity.
(4) Because of number (3), most people do not realize that when snowflakes reach sexual maturity, their teeth change and they can and will eat fish, even those much larger than their own skinny little heads. They use their bodies to tie knots around the fish, break them down, then take it into their cave to eat at their leisure (hence, water quality issues referenced above).
Sorry to be such a downer, but there's a lot of bad information out there about these fish.
Maybe a dwarf eel would work.