Point well taken!!! I will take a reading tonight to see if the SG has dropped. If I do see a reduction is it best to leave it alone for the two weeks or should I be taking periodic measurements? If I dont see a reduction should I give additional time or should a pitch a new batch of yeast?
If it has dropped even a few degrees you don't need to do anything thing, just leave them to their job..
One thing to realize, especially when you use the word "activity;"
Fermentation is not always "dynamic," just because you don't SEE anything happening, doesn't mean that anything's wrong, and also doesn't mean that the yeast are still not working dilligantly away, doing what they've been doing for over 4,000 years....
airlock bubbling, lack of airlock bubbling, stopped airlock bubbling, fast airlock bubbling, slow airlcok bubbling, heavy metal airlcok bubbling, or disco airlock bubbling really is not an indicator of what is happening to your beer. It is NOT a fermentation gauge, it is a valve to release excess pressure, excess CO2...NOT AN ACCURATE INSTRUMENT....
I have 9 different fermenters and have been brewing for a few years, and OVER HALF OF MY BEERS NEVER HAVE ANY BUBBLING IN THE AIRLOCK AND THEY ALL TURN OUT FINE!
If you've oxygentated, and pitched plenty of yeast, then you SHOULD reach your yeast attenuation, and get close to the final gravity.....that is all that is important...NOT whether or not you airlock goes "blip" or "Rattattattatta!!!!"
An airlock is a vent for excess co2, nothing more, it's to keep your beer off the ceiling, and is designed to vent and still keep stuff out of your beer....that's really it...
In fact many no longer use airlocks at all, just cover the hole with a piece of tinfoil, or use a piece of plexiglass instead of a lid.
The airlock is not a precision instrument...Your hydrometer is not your LAST resort in your mind after the thought of pitching more yeast...It
should be the first thing you grab, if you are worried about your beer...even before posting an "is my beer ruined thread, or asking if something is wrong on here.
Most people end up having piece of mind when the actually use it and NOT bubbling airlocks.