Isn't the most non agresssive eel a dead eel?
Maybe buy a rubber one....
I had a snowflake fir a year. Non aggressive... blind as a bat. Could only see 3ins in front of itself. Most eel are extremely near sighted.
My snowflake was a world-renowned ESCAPE ARTIST..... even with every conceivable way out BLOCKED. They can get out with a 1/4" gap somewhere
Several times heard a "thump/splat" on the floor and knew it got out and hit the floor.
I think theyre more of a P.I.T.A. than what it is worth.
I'd
never get another one.
I gave away mine for free thru Craigslist in a 5gal bucket
Kissed my hand and waved GOODBYE as it left my driveway