NUDI ID

[Allen glover]

Found this little guy drifting around in the tank. 99% sure its a nudi, any one hazzard a guess as to what flavour. Yes those are my finger ridges

 

[ScottR]

Found this little guy drifting around in the tank. 99% sure its a nudi, any one hazzard a guess as to what flavour. Yes those are my finger ridges

Some type of Hypselodoris (google it). There are different types. And many of the same species have totally different coloring. To me, this type is harmless.

This article is helpful.

https://www.mnn.com/earth-matters/animals/blogs/new-dazzling-species-sea-slugs-discovered