I found this little guy a few days ago but he got away. I found him again today in my zoos. Is he good or bad?
All nudibranchs are predatory. Any slug that eats algae is not a nudibranch.He doesn't look like the one I've seen that eats hair algae
A sacoglossan. There isn't really a common name for them other than just the generic "sea slug."then, what's the lettuce nudi?