It's been about 2 weeks since I put my Irish Red into the bottles. A few days ago I noticed something that hadn't been there before. It's like these dark, solid particles about the size of a grain of sand floating on the top of all of the bottles.
Also if I tilt the bottle, I can see that whatever it is left a ring around the inside of the neck, right where the surface of the beer is.
Any ideas what this is? It definitely was not there one week ago. There are also some dark clouds that I can see swirling around when I move the bottle a little, no idea if it's related.