" wrote in
oups.com:

I recently bought a rope fish (I call him Earl) and I need to know what
kinds of fish make good tankmates befor I go out and buy them.

These guys do better in a group, so you may want to get him a couple
friends.

If you want to keep the nocturnal theme a big knife fish might be cool.
Keep your tank very dimly lit and you should see everybody all the time.

Otherwise you can keep him with pretty well any other large peaceful
fishes. A few examples could be silver dollars, large bushfish, large adult
gouramis, large not-too-aggressive cichlids like severums, blue acara, and
some geophagus.