I had them in a tank once. The trigger would bite the eels tale, the eel would turn himself around, the trigger would go around the rocks and bite him again...all day long. Had to get rid of the trigger.
Triggers will be horrible with an eel. If it wasn't a snowflake, it would be the eel eating the trigger. But with how it is, that eel is about as big as it will get. It also doesn't have the teeth to defend itself, as snowflakes have teeth very sinilar to molars that they use to crush hard shells.
Make sure you have a lid on the tank, go with a less aggressive trigger like a Niger if you want to keep an eel with him. Like stated make sure the tank is larger enough for the two. Avoid the really nasty triggers like undulated. I think a black indo or pink tail would also work nicely
I had them in a tank once. The trigger would bite the eels tale, the eel would turn himself around, the trigger would go around the rocks and bite him again...all day long. Had to get rid of the trigger.