please id

[jmac]

i was cleaning my tank the other day and noticed this on the glass it was to peel of the glass i don't know if it is anything at all but i have never seen any thing like this before.

 

[pepperjack]

Was the back covered by a shell, like a cap?

 

[Boomer]

That looks like a big Polycald flatworm on its back

 

[pepperjack]

Ok, mine turned out to be stomatella snails, reef safe

 

[mmn_usn]

closer pic?

 

[NaH2O]

I'd like to see the other side. I thought it looked like it was a flipped over flatworm. If you can, can you post a pic of the other side?

 

[Herefishyfishy]

I agree on flipped over flatworm.

Looks too soft to be a stomatella or a chiton which also show up as hitchhikers
http://wwwbio200.nsm.buffalo.edu/labs/tutor/Chiton/

 

[jmac]

yes it did have shell like a cap here is another pic it closed up after i picked at it.im sorry i can not get a better pic