Fish in an office pond in Indonesia has a unique hobby of sucking its feeder's finger.

In footage I filmed on Tuesday (June 8), at the office of the Regional Representatives Council of Bukittinggi city, I fed the fish and felt like my finger was sucked by a baby whose teeth were just growing.

A clear sound is heard from the fish's mouth when sucking the fingers.

Hendra Mulia, office-supplies officer, said that fish like to suck man fingers that are on the surface of the pond water when they are fed.

"But, fish only do it unique hobby when they're fed from just one point pond corner near the fish food storage. Fish don't want to suck fingers at another point in the pond," Mulia added.

Footage I filmed with my phone.