Need an ID

[svynx]

I know that I didn't put this in the tank. I just happen to see it today as I was looking around to see how things were. It's about 2" long right now. Also just saw that I have red flatworms right now. Any idea? Tiger Cucumber?

 

[svynx]

In person it looks like a different color verson of a Pentacta anceps aka the Pink and Yellow Sea Cucumber.

 

[Elysia]

It looks like it may have feet, and if so, it is likely a cucumber of some kind. They have little urchin/star fish like feet. It kills me that I love inverts and yet I hardly ever get to "discover" any in my tanks -- I think the most exotic animal I have ever found was a peanut worm!

I like how the snail is trying to hide under the cucumber.