flatworm or Nudibranch?

[RocketSeason]

Its taken me a couple weeks before I realized that this thing is accually changing positions on the glass from day to day!

I did a search trying to figure out what it is. no luck. THe brown spot in the center sticks out from the glass a bit. like a little bunp.

any Ideas?

-Matt

 

[seacat]

it looks like a tiny jelly fish or something

 

[CBRGuy]

It's hard to tell but is may be a hydriod (spl?) jelly fish.

 

[xxmoorishmanxx]

possibly a red flatworm convolutriloba

 

[RocketSeason]

no. Its not a jelly fish. It crawls along the inside of the glass.