Just checked one of my strongest hives and found 10 - 15 queen cells. I cleaned most of them out but time was not on my side. Hive has two brood boxes, 2 honey supers and loaded with bees. I had a problem with cells being built between the bottoms of the frames. This hive has been really strong but seems to have slowed down. I also found that the two outer frames of the broad boxes were full of capped honey.