Ropefish will eat most types of sinking pellets, but also require some live food in their diet. Frozen is fine. Try blood worms, and brine shrimp when small. When the ropefish grows, it will love some earthworms or meal worms. You may need to get a long pair of tongs to introduce food to your ropefish. They aren't aggressive eaters, and are slow at finding food, so you can use the tongs to introduce food directly to your ropefish's snout to be sure it gets enough to eat.
They're escape artists, so make sure you have a tightly covered tank.
150g long S Amer cichlid; 90g C Amer cichlid; 90g Malawi cichlid; 40g Tanganyika cichlid; 29g "Shellie" cichlid; 29g Pea Puffer. 6,500g koi/native catfish pond; several smaller ponds