| No. | All keepers listed by when they started keeping this species. The longest an individual has been kept is 15 years, 11 months. |
| 1 | arapaimag (k: 3) since 1997-11-05 to 2013-11-01, that's 15 years, 11 months |
| 2 | amiidae since 2007-07-04 to 2009-07-04, that's 2 years, 0 months |
| 3 | Fishedin since 2008-08-15 to 2012-09-16, that's 4 years, 1 months |
| 4 | CFC since 2008-09-15 to 2010-09-15, that's 2 years, 0 months |
| 5 | miles3 since 2010-05-10 to 2012-05-10, that's 2 years, 0 months |
| 6 | lfernandes01 (k: 2) since 2012-06-01 to 2015-01-07, that's 2 years, 7 months |
| 7 | Koltsix (k: 5) since 2022-07-12 to 2024-09-16, that's 2 years, 2 months |
| 8 | yellowcat (k: 2) since 2022-08-16 to 2025-06-16, that's 2 years, 10 months; who writes, "Original 2 specimens, one 5"TL, the other 4 1/2" TL. displaying typical behavior by burying in gravel, fast growing. As of 3-‘24, smaller one is @ 14”, big one is 15”TL, now growth rate 1” per month! Both aggressive surface feeders. Growth slowing, as of 5-'25 now smaller one@ 18"TL, big one is 19"TL" |
| 9 | Luis Pandolfi since 2024-01-24 to 2025-06-16, that's 1 years, 4 months; who writes, "Desde quando chegou já apresentou um comportamento bem interativo, associando a mim com a alimentação. Chegou com 200mm e hoje está com 500mm, creio que por ser um macho não irá ultrapassar essa medida, estou com ele há 1 ano e o crescimento foi relativamente rápido." |
