Coral eating nubi?

[Jonnyacrofeed]

Hi the other day I was looking at my tank and saw something strange on my frogspawn's skeletal base. If I didn't see it moving slowly I would have mistaken it for coraline algae. It is like a dullish purple color, very flat, kind of an oval shape but can stretch its body into different shapes. It's probably about 3/4 of an inch long and 1/4 an inch wide. Any ideas on what this is? Thanks.

 

[dela]

No pic of the old nubi?

 

[Jonnyacrofeed]

I dont have a digital camera, anybody have any ideas based on the description above? Thanks.

 

[dela]

I think it would be impossible. There are a few sites dedicated to nudibranches you should look through. Maybe someone can post some links.

Chances are it will die soon.