there are all sorts of eels out there to get. But the snowflake is probably the most popular of all choices. in my 90g tank i have an green eel, ghost snake (or as i call it the ghost eel) and a snowflake which i'm selling tomorrow. And they get along just fine although the snowflake is biggest eel in the tank. i had the green for 4 years and the snowflake for two snd the ghost snake for an year. But remember if you get the green it's pretty exspensive and might be the only fish in the tank.