What could this be??

Anyone?

 

Very hard to see in your pic but it looks like it could be a yuma or ricordea.

 

Hard to tell but I do like the ricordea as a possibility. Other than that I would say is a brown thing next to an asternia star!

 

Looking again it could also be a Bullseye Mushroom .

 

Hmm, the thing is goes flat, then has the spike things again, it moves all over my glass like a snail. Just wasnt sure.

 

How about some more hints? Now we know that it moves like a snail...how big is it?

Moves like a snail, can go flat and the spikes can morph...sounds like some sort of nudibranch.