| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 21 years, 7 months. |
| 1 | arapaimag (k: 3) since 1992-01-04 to 2013-08-24, that's 21 years, 7 months |
| 2 | arapaima since 2007-03-01 to 2009-03-01, that's 2 years, 0 months |
| 3 | MADRacing since 2007-11-16 to 2012-12-28, that's 5 years, 1 months |
| 4 | Koltsix since 2008-02-02 to 2010-02-02, that's 2 years, 0 months |
| 5 | Junttis since 2008-03-23 to 2009-01-05, that's 0 years, 9 months |
| 6 | Dave Rinaldo (k: 2) since 2008-06-05 to 2011-06-02, that's 2 years, 11 months |
| 7 | SoCalDiscus since 2009-03-31 to 2011-03-31, that's 2 years, 0 months |
| 8 | Argentum since 2009-09-09 to 2013-09-14, that's 4 years, 0 months |
| 9 | mi-tatsu since 2010-12-27 to 2012-12-27, that's 2 years, 0 months |
| 10 | capester since 2011-09-09 to 2013-09-09, that's 2 years, 0 months |
| 11 | kp90 (k: 6) since 2011-11-17 to 2014-06-01, that's 2 years, 6 months |
| 12 | Decker504 since 2012-05-14 to 2014-05-14, that's 2 years, 0 months |
| 13 | BernieEcht since 2012-05-29 to 2014-05-29, that's 2 years, 0 months |
| 14 | luv4bigcats since 2012-06-12 to 2014-07-12, that's 2 years, 1 months |
| 15 | crazy4bettas since 2013-08-05 to 2015-11-24, that's 2 years, 3 months |
| 16 | liamirons since 2014-10-10 to 2016-10-10, that's 2 years, 0 months |
| 17 | JonathanReid since 2015-04-03 to 2017-04-03, that's 2 years, 0 months |
| 18 | monsterfishkeeper since 2015-04-11 to 2017-04-14, that's 2 years, 0 months |
| 19 | Hrothgar Sørensen since 2017-04-20 to 2019-04-20, that's 2 years, 0 months |
| 20 | datfish since 2018-10-31 to 2020-10-31, that's 2 years, 0 months |
| 21 | d3n2 (k: 2) since 2019-02-03 to 2022-08-12, that's 3 years, 6 months |
| 22 | Rpul since 2019-02-03 to 2021-02-03, that's 2 years, 0 months |
| 23 | Doradid (p: 2, k: 3) since 2019-03-06 to 2019-08-16, that's 0 years, 5 months |
| 24 | Redtailrob since 2020-05-03 to 2024-11-21, that's 4 years, 6 months |
| 25 | qui2424 since 2020-11-06 to 2022-11-06, that's 2 years, 0 months |
| 26 | Fishmandavew since 2022-06-28 to 2024-06-28, that's 2 years, 0 months |
| 27 | BarackYomama since 2023-04-27 to 2024-11-21, that's 1 years, 6 months |
| 28 | N_F_S since 2024-04-08 to 2024-11-21, that's 0 years, 7 months |
