All Fishes ⇒ My Fish Registered Keepers ⇒ Betta falx

No. All keepers listed by when they started keeping this species. The longest an individual has been kept is 2 years, 2 months.
1 Bettaja (k: 31) since 2017-09-09 to 2019-11-28, that's 2 years, 2 months; who writes, "Pretty secretive, smaller Betta"