Hello! Today I went to my local aquarium store, and took home a free nudibranch about an inch or more long that had hitchhiked in one of their tanks. I named it Saint Kyoko. I searched online and discovered it is most likely a Tritoniopsis. I found out they eat soft coral, which is usually makes them pests, but I don't keep coral, just macroalgae, snails, and now this little fellow. Since I only took the one, and nudibranches supposedly cannot reproduce on their own, I don't forsee it overrunning my tank.
Now my questions are: Will they eat any soft coral? How about zoas? How much do they need to eat? If I can feed it with a $10 frag or two of such-and-such a month, it's no problem, but if it needs the fancy $60 stuff and a lot of it, it is unfortunately RIP to Saint Kyoko.
Also I'll probably need to feed the coral every now and then too?
Now my questions are: Will they eat any soft coral? How about zoas? How much do they need to eat? If I can feed it with a $10 frag or two of such-and-such a month, it's no problem, but if it needs the fancy $60 stuff and a lot of it, it is unfortunately RIP to Saint Kyoko.

Also I'll probably need to feed the coral every now and then too?