Yep, those are BG. I'd use the smallest bobber you can get, make it small enough so that it just barely floats with the bait on it. If you can't find a tiny one, get the smallest you can find and pinch some split shot right under the bobber, adjusting the weight so it barely floats. It will be a lot easier to notice when they bite then.
I'll either use one of the Thill brand bobbers, or a bobber that is used for ice fishing.
Long shank hooks make getting the hooks out easier, and if you don't have a pair, get yourself a pair of hemostats that have a gentle curve to the jaws. A pair that is about 6" long is just about right. That makes getting the hook out easy (for me).
