You are worring unecessarily :grin:
That brown floaty stuff it just the deposits thrown off the yeast through the process of fermemtation, you'll find that as you siphon/run-off into a keg most of it will stick to the sides of your fermentation bucket and the little that gets through will form part of the trub at the bottom of the keg as the suspended yeast settles out.
It sounds like it's got down to a good final gravity (FG) if you are able to i'd try to leave it 10 days before you keg it, you might find it drops to 1.012.
What keg are you using and how much priming sugars are you planning to use?
That brown floaty stuff it just the deposits thrown off the yeast through the process of fermemtation, you'll find that as you siphon/run-off into a keg most of it will stick to the sides of your fermentation bucket and the little that gets through will form part of the trub at the bottom of the keg as the suspended yeast settles out.
It sounds like it's got down to a good final gravity (FG) if you are able to i'd try to leave it 10 days before you keg it, you might find it drops to 1.012.
What keg are you using and how much priming sugars are you planning to use?