The patuki wala (giant grouper) was speared this week by two young men, Araitepo Dariu and Tinokura Tutau.
Dariu speared the fish and had to come up for air while his friend Tutau dived down to finish off the mission.
Tikinau Mouauri, who lives on the island, said unfortunately the fish was not weighed as there were no scales.
Patuki is a brown spotted grouper (epinephelus chlorostigma), also known as the brown spotted reef cod.
The fish is popular with locals and usually eaten fried or boiled in coconut cream.