| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 33 years, 2 months. |
| 1 | arapaimag (k: 6) since 1980-04-12 to 2013-06-22, that's 33 years, 2 months |
| 2 | Walter (k: 24) since 2005-07-20 to 2007-03-01, that's 1 years, 7 months |
| 3 | kntrygrl4lyfe since 2007-02-25 to 2009-04-20, that's 2 years, 1 months |
| 4 | Trident2004 since 2007-03-03 to 2009-03-03, that's 2 years, 0 months |
| 5 | cats4me since 2007-03-29 to 2009-03-29, that's 2 years, 0 months |
| 6 | Benjamin (k: 2) since 2007-08-24 to 2009-08-24, that's 2 years, 0 months |
| 7 | RobDoran1 (p: 2) since 2007-10-25 to 2009-10-25, that's 2 years, 0 months |
| 8 | Eddie since 2007-11-20 to 2009-11-20, that's 2 years, 0 months |
| 9 | geekshow since 2008-01-02 to 2010-09-02, that's 2 years, 8 months |
| 10 | alderfish since 2008-01-10 to 2010-02-12, that's 2 years, 1 months |
| 11 | brettjurgens (k: 3) since 2008-01-20 to 2010-01-27, that's 2 years, 0 months |
| 12 | luv4jjt since 2008-05-07 to 2010-05-07, that's 2 years, 0 months |
| 13 | GixxerBabe since 2008-07-07 to 2010-07-07, that's 2 years, 0 months |
| 14 | pokerbunny since 2008-09-18 to 2010-09-18, that's 2 years, 0 months |
| 15 | ryguy713 (p: 2) since 2008-11-12 to 2010-11-12, that's 2 years, 0 months |
| 16 | dragonfish since 2008-11-15 to 2010-11-15, that's 2 years, 0 months |
| 17 | seds (p: 2) since 2008-12-06 to 2010-12-06, that's 2 years, 0 months |
| 18 | willis30 since 2009-02-10 to 2011-02-10, that's 2 years, 0 months |
| 19 | tezr (k: 2) since 2009-04-20 to 2011-05-07, that's 2 years, 0 months |
| 20 | dmcat since 2010-02-04 to 2012-01-01, that's 1 years, 10 months |
| 21 | betsyboo (k: 3) since 2011-03-19 to 2013-03-19, that's 2 years, 0 months |
| 22 | Sara1210 since 2012-01-25 to 2014-02-27, that's 2 years, 1 months |
| 23 | Sean OB since 2012-09-05 to 2016-01-01, that's 3 years, 3 months |
| 24 | Mikey1973 (k: 2) since 2013-03-09 to 2013-03-13, that's 0 years, 0 months |
| 25 | booitsme3109 (p: 3, k: 3) since 2014-05-19 to 2016-09-30, that's 2 years, 4 months |
| 26 | flatdog (k: 2) since 2015-11-16 to 2017-11-16, that's 2 years, 0 months |
| 27 | Schall since 2016-06-10 to 2018-06-10, that's 2 years, 0 months |
| 28 | caninesrock since 2017-06-28 to 2017-06-28, that's 0 years, 0 months |
| 29 | Juntti since 2020-07-02 to 2022-07-02, that's 2 years, 0 months |
| 30 | N_F_S since 2024-04-04 to 2024-05-09, that's 0 years, 1 months |
