I know its an old thread but; was just browsing through the Forum; it caught my eye.. and I just thought I'd jump in anyway...
I have a pair of Rope Fish; absolutely love them... they're the only two of my fish that I hope last the longest...
Anyway; in regards to feeding them.
One of my Rope Fish; the first one that I got; has been very picky about his food. He'll only touch Blood Worms; and he particularly enjoys Freeze Dried... though on occassion I'll toss a couple frozen bloodworm cubes into the tnak; and whatever the rest of the fish don't pick the hell out of, sinks to the bottom and he'll finish it off.
Eventually; I managed to acquire a second Rope Fish. The Pet Shop that I went too, had some in and thought they were out of stock... and found this one in the big bin under the tank where their filter's drain out into! Haha, thats another think to watch for, they're escape artists!
Anyway, this one looked healthy, didn't have any visble injuries from its "pet shop escape attempt" so I bought it, and brought it home and added it in... thought the two would be great together. At first; it took them awhile to get used to each other. My first one was somewhat territorial towards the second one; and they stayed on opposite sides of the tank. Now; they're sharing the same hollow log together
...and I could be wrong but I am pretty sure one of them is a female; and other is a male... cause one is a nice golden yellow; while the other is a casual olive brown.
Now as for the second one; and its feeding habits... well now this one is very different. I'll refer to it as a she; and she'll eat just about anything it seems!
She even eats the Tetramin Flakes that I put in for the rest of the fish; she'll eat dried plankton cubes; freeze dried blood worms, and brine shrimp cubes... and I'v even seen her try to chomp down some krill. The other one won't even touch the other stuff.
So... I would say, if you're new to Rope Fish and plan to get one; then experiment with little bits of various food, and see what yours prefers to eat. Drop in small amounts; all together.. or seperately; and just watch yours for awhile. What I've noticed is mine will swim around the top of the tank during feeding time, and just search along the edges for something that they want. They won't chomp on anything, unless their "nose" actually comes in contact with it, because I've watch them just swim right past stuff that I know they'll eat, and just keep swimming and then brush their nose against another piece, stop... and just chomp it right down.
Now; some people here have said that they can hand feed their Rope Fish; I read a couple replies about cut up prawns...
My Rope Fish will not approach the top of the tank if my hand is there; and they're shy... if I get too close to the tank while they're swimming around looking for food; they'll dart off into their hollow log, or into some dark corner and hide there until I back away from the tank... then they'll slowly inch back out, and start their search again.
This has made it very difficult for me to get pictures of mine, it makes me think that they actually know what a camera is and they're camera shy!
Because once they're out and about, and I start to aim a camera at them, they'll suddenly dart off and hide.
So, like I said.. experiment. See what your Rope Fish likes, and what it doesn't like...
Oh... one last thing.
I've found that my Rope Fish are most active at night; regardless of whether I have room lights/tank lights on/off or not... they ust seem to
"know" that it is night time outside, and they start coming of their hiding places and swim around. Thats when I feed them and when I have actually seen them eat stuff. Eventually it has gotten to the point where they know that its time, and they'll be out, and waiting... dart off to hide as I open the tnak and add the food in, then slowly creep back out and start sniffing out what they want.