| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 26 years, 3 months. |
| 1 | arapaimag (k: 2) since 1987-06-03 to 2013-09-04, that's 26 years, 3 months |
| 2 | Starfish42 since 2000-08-28 to 2013-09-29, that's 13 years, 1 months |
| 3 | lasteeves (k: 6) since 2005-05-26 to 2014-05-26, that's 9 years, 0 months |
| 4 | synoguy since 2007-01-21 to 2009-01-21, that's 2 years, 0 months |
| 5 | Oliver D. (k: 4) since 2007-09-01 to 2009-09-01, that's 2 years, 0 months |
| 6 | Dave Rinaldo since 2008-05-11 to 2010-05-11, that's 2 years, 0 months |
| 7 | jippo (k: 2) since 2008-09-12 to 2013-10-07, that's 5 years, 0 months |
| 8 | synofreak since 2009-03-11 to 2011-03-11, that's 2 years, 0 months |
| 9 | drpleco (k: 9) since 2009-12-14 to 2011-12-15, that's 2 years, 0 months |
| 10 | judeblackburn since 2010-01-30 to 2014-08-17, that's 4 years, 6 months |
| 11 | corybreed since 2011-01-01 to 2018-05-11, that's 7 years, 4 months |
| 12 | GreenSynoMan since 2014-12-03 to 2024-11-21, that's 9 years, 11 months |
| 13 | protopterus since 2017-03-14 to 2019-03-14, that's 2 years, 0 months |
| 14 | N_F_S since 2024-04-08 to 2024-11-21, that's 0 years, 7 months |
