Contamination? What's this?

Hey guys,
I brewed a hoppy red ale on Tuesday and pitched some washed wyeast 1084 into it that evening. I had an og of 1.070 and went ahead and put a blowoff tube on the fermenting bucket in case I had a huge krausen. I did not see any fermentation bubbles, and later realized that the seal was not as tight as I thought it was between the tube and bucket lid. Today put in a regular airlock and noticed a strange green scaley looking growth on the top of my beer. Is this some sort of contamination? A picture is attatched...

No contamination everything looks just fine. That is just what is left of you krausen. Put the lid on and leave it alone for a few weeks.

Whew! Thanks! I'll let y'all know how it turns out! Cheers