My ropes don't seem to interact at all
infact... 1 is out most of the time swimming about and looking for food. One comes out every once in a while and comes out if any food fall in the tank. The third.... hides constantly unless worms or shrimp are put in as food. He is like a moray eel.... just sits ina rock, pokes his head out, if he is somewhat interested he pops half his body out... and if its not something he wnats, back in the cave he goes.
but they don't swim together. He do stay in the same area (what i like to call the rope ranch) which is just a bunch of rocks stacked together that only they can get into, but thats it for interaction.
in fact, 2 of them were FIGHTING a while ago. have no idea why but they fought just like other poly's... chompin on the tails.
I got some weird ropes