Airlock activity is NOT a good means of gauging fermentation. It is a valve, a vent to release excess co2, NOT a calibrated fermentation gauge. If it is not bubbling it doesn't NEED to, not that, fermentation has stopped. You hydrometer proved that fermentation is going on. Get out of the habit of caring or worrying about what happens to your airlock, about half my beers never see a blip of an airlock. And I'm not the only one. You did good checking your gravity. That is what a hydrometer is best used for, a diagnostic tool.
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Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman
I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew