Behavior. They are carnivores that slowly ply their range grazing on algae, sponges, anemones, corals, barnacles, and even other nudibranchs. To identify prey, they have two highly sensitive tentacles, called rhinophores, located on top of their heads.

What do you feed a nudibranch?

They are carnivorous, so that prey includes sponges, coral, anemones, hydroids, barnacles, fish eggs, sea slugs, and other nudibranchs. Nudibranchs are picky eaters—individual species or families of nudibranchs may eat only one kind of prey. Nudibranchs get their bright colors from the food they eat.

What do nudibranchs need to survive?

There are certain species of Sap-sucking slugs (or sacoglossans) that produce solar power by eating corals which are rich in algae. Nudibranchs absorb the chloroplast of the algae and engage in photosynthesis. The created nutrients help Nudibranchs to survive and obtain the established energy for several months.