Hello please help me identify this mistery creature/hitchhiker

[JFishburn]

I have know idea what this is but it mows throw the algae.

Thanks

 

[JFishburn]

sorry try this again

 

[venwu225]

wow is there anyway to make the photo bigger?

 

[JFishburn]

Lets try this

or direct link
http://www.johnfishburn.com/Picture...e.DownloadItem&g2_itemId=35&g2_serialNumber=1

 

[venwu225]

limpet

 

[Sk8r]

Generally harmless. Like a snail but harder to get off the rock. Wish I had one. He might even plow through bubble algae.

 

[JFishburn]

sounds good, thanks a lot.

 

[gunslingerone9]

limpet yes, also they totally wiped out my red cynobacteria