| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 18 years, 8 months. |
| 1 | arapaimag (k: 12) since 1995-01-03 to 2013-09-12, that's 18 years, 8 months |
| 2 | brettwms75 since 2006-03-02 to 2011-01-02, that's 4 years, 10 months; who writes, "It's so hard to keep their fins nice. Depending on space and diet they are very nippy with each-other. They're always chewing one anothers fins off. When I have more room I hope I can order more!" |
| 3 | arapaima since 2007-03-01 to 2009-03-01, that's 2 years, 0 months |
| 4 | howdenend (k: 2) since 2007-06-01 to 2011-10-20, that's 4 years, 4 months; who writes, "Both currently about 12" and seem so far to be pretty straight forward to look after. Favourite food is definately king prawn (expensive taste!)" |
| 5 | kntrygrl4lyfe (k: 3) since 2007-07-02 to 2009-08-24, that's 2 years, 1 months |
| 6 | Occellatus since 2007-08-17 to 2009-08-18, that's 2 years, 0 months |
| 7 | Sinblesser since 2007-10-31 to 2009-10-31, that's 2 years, 0 months |
| 8 | RedTail Cat since 2007-11-19 to 2009-11-19, that's 2 years, 0 months |
| 9 | Young_Yacht since 2008-01-24 to 2010-01-24, that's 2 years, 0 months |
| 10 | jessey since 2009-08-25 to 2009-10-25, that's 0 years, 2 months |
| 11 | michiganraised since 2010-07-18 to 2012-07-18, that's 2 years, 0 months |
| 12 | jakepittbull since 2011-02-19 to 2013-02-19, that's 2 years, 0 months |
| 13 | agusmeteor (k: 8) since 2012-01-15 to 2014-07-27, that's 2 years, 6 months |
| 14 | jmtjoy since 2013-11-17 to 2015-09-01, that's 1 years, 9 months |
| 15 | TheBobbyVee (k: 2) since 2014-09-08 to 2018-09-04, that's 3 years, 11 months |
| 16 | Alf Alf (k: 2) since 2014-11-02 to 2021-06-29, that's 6 years, 7 months |
| 17 | ChanelGreen since 2015-09-06 to 2017-09-06, that's 2 years, 0 months |
| 18 | Fishmandavew (p: 2) since 2018-03-20 to 2020-03-20, that's 2 years, 0 months |
| 19 | angerygrover since 2018-04-16 to 2020-04-16, that's 2 years, 0 months |
| 20 | qui2424 since 2021-12-04 to 2023-12-04, that's 2 years, 0 months |
| 21 | Ichthyovenator since 2023-04-10 to 2024-11-23, that's 1 years, 7 months |
| 22 | N_F_S since 2024-04-08 to 2024-11-23, that's 0 years, 7 months |
