Sorry for the late reply, but I just saw this thread. I have kept ropefish for a few years now (I have five), and they're by far my favorite fish. You can view the fish profile here
I have tried mealworms with mine but they have to be cut in half (and my ropes are fairly large (ranging 14-17 inches).
I feed mine small/medium crickets, red wiggler earth worms, frozen blood worms, frozen beef heart, tubifex worm cubes, and sinking shrimp pellets. Their favorite, by far, is the red wiggler worms.
I would suggest you get at least one more ropefish, they do so much better in groups.