Clear moving slimy looking thing

[zwiththeach]

There is a clear thing sliding across my tank. Tanks 6 weeks old no fish or inverts just live rock not sure how to post a video on here

 

[ginpang]

Download Tapatalk it'll be easier for pictures and videos


Sent from my iPhone using Tapatalk

 

[JustinM]

I'm going to assume a flatworm