If I had of known as much as I know now through experience with them before I purchased them, I can honestly say I would have never gotten them. I feel they really should be left to a species tank.
Thanks for the heads up about the PVC pipe looking ugly in the tank. I found this online and was thinking maybe that'll help make it look nicer if it gets uncovered, http://www.aquariumlife.net/projects/diy-decoration/99.asp. I've kept a Rope fish for a while before (he, of course, managed to escape into my sink and after I put him back in he showed signs of Ich the next day and didn't make it). Of course I want to try again and my new tank is fully sealed (60 gallons so he'll have room). I was just wondering if they'd even take to the PVC pipe, or if that's just something an eel would enjoy?
That's what I was thinking of doing. I'm also considering just angling some flat rocks in the front of the tank to create a cave for him (he'll always be visible that way too). Should make it easier to clean as well. I'll test it out and see how it looks. Thanks for all the help, I'll post pics once I do decide what to do and finally get my rope fish.