Strange slug/snail/nudi...please ID

[Isaac Alves]

Video:

 

[KJ]

Oxynoe sp. https://www.google.com/search?q=oxy...aQwuDNAhVJ8GMKHe_-AIUQ7AkIQA&biw=1920&bih=955

 

[Isaac Alves]

Oxynoe sp. https://www.google.com/search?q=oxy...aQwuDNAhVJ8GMKHe_-AIUQ7AkIQA&biw=1920&bih=955

That's exactly it. Oxynoe Viridis. Outside of eating my Caulerpa, is it useful in other ways? Or do I need to worry about this slug?

Thanks for looking.

 

[KJ]

I need to worry about this slug?

No macroalgae grazer