Strands Like Hair in Fermenting Beer

I am brewing a schwarzbier using US-05 because I don't have a setup to brew a real lager. The OG was 1.047 and I have a current gravity reading of 1.012 after 5 days of decent fermentation at an ambient temp of 65 degrees with an expected FG of 1.008 or so. The beer tastes like I expected, smells fine, and is still bubbling in the airlock. My only concern is a weird string like structure I noticed in the fermenter today. I've been scouring the Internet looking for something that resembles it but I have thus far been out of luck. Does this look familiar to anyone?

Here is a link to the recipe I based this off of, in case that helps: https://www.atlanticbrewsupply.com/assets/images/PDF/ABS%20RBC%20The%20Royal%20Lager%20AG.pdf