What is going on here?

4 Days into fermenting my Dead Ringer and the activity has slowed way down, took the blowoff tube off and put a 2-piece on…

Notice today the surface is covered with flakes, might not be a big deal but never seen anything like this before.

05 Dry Yeast
69-71 steady temp


Just yeast. No problems.

Thought it might be, just when you thought you seen it all :oops:

Yeast, remains of the krausen, other coagulated proteins from the boil.

No biggie.