Um... snowflake eels get two feet long... that is way too cramped! It will most likely stress the eel into starvation.
I have a 20 gallon and have the eel itch too. However I have been looking at getting a golden dwarf eel that only gets to about 10-12 inches... they are expensive and not easy to come by... but even with my 20 gallon I am having a hard time trying to justify my eel desire with my current set up. (My 3Ē tiger cowrie looks cramped in my tank, I now canít imagine stuffing an eel in there too!)
cowrie is on the back wall.