Day 7 in the secondary (day 14 overall) for a blonde ale and substantial carbonation is visible in one of the carboys. Pulled a sample to get a reading and CO2 bubbles coming from my sample and visible in carboy. Is this normal? I've never seen this. You can see CO2 coming to the top of the carboy. It was a heavier blonde at a 1.060 OG. Why is the other carboy of the same batch not doing this?