Hello friends! Long time beer lover, first time brewer here. My first batch was crafted using the TrueBrew Oktoberfest kit. I brewed a little over 3 weeks ago, and racked to a secondary after my gravity was the same for a few days (it was also was within the FG in the instructions). I am now 1 week into the secondary and I noticed small white grains lining the ridges of the carboy. I am assuming it is yeast, but I am not too sure. I also have noticed bubbles coming up from the bottom and settling on the top. Does this seem like normal behavior? Pics below!