A few days ago, a couple of blocks away from work, I stumbled upon this very big koinobori, probably the largest I have seen in an individual house:
It’s the first time I see one with eight carps! As a reminder, the largest koi, the black one, usually represents the family’s father, the second one, the red one, is the mother, and all the subsequent ones are the children. So does it mean that this family has six kids? I guess so.