What is the biggest koi carp?

The biggest koi carp ever recorded was a 47-inch long, 44-pound fish caught in Japan in 1977. It was named "Hanako" and remains the official record holder.

However, it's worth noting that:

* Koi can grow to impressive sizes. Many koi exceed 3 feet in length and 30 pounds.

* The largest koi are usually kept in ponds. These ponds provide ample space for the fish to grow and swim.

* There are likely larger koi out there. The official record only reflects the fish that have been caught and measured.

So, while "Hanako" holds the current record, it's possible that even bigger koi exist in ponds around the world!